docs: Upgrade plugin to integrations framework

.github/workflows/ensure-docs-compiled.yaml

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+name: Ensure Docs are Compiled
+on:
+  push:
+jobs:
+  ensure-docs-compiled:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
+      - uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
+      - shell: bash
+        run: make build-docs
+      - shell: bash
+        run: |
+          if [[ -z "$(git status -s)" ]]; then
+            echo "OK"
+          else
+            echo "Docs have been updated, but the compiled docs have not been committed."
+            echo "Run 'make build-docs', and commit the result to resolve this error."
+            exit 1
+          fi
+

.github/workflows/notify-integration-release-via-manual.yaml

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+name: Notify Integration Release (Manual)
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "The release version (semver)"
+        default: 0.0.1
+        required: false
+      branch:
+        description: "A branch or SHA"
+        default: 'main'
+        required: false
+jobs:
+  notify-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout this repo
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        with:
+          ref: ${{ github.event.inputs.branch }}
+      # Ensure that Docs are Compiled
+      - uses: actions/setup-go@v4
+      - shell: bash
+        run: make build-docs
+      - shell: bash
+        run: |
+          if [[ -z "$(git status -s)" ]]; then
+            echo "OK"
+          else
+            echo "Docs have been updated, but the compiled docs have not been committed."
+            echo "Run 'make build-docs', and commit the result to resolve this error."
+            exit 1
+          fi
+      # Perform the Release
+      - name: Checkout integration-release-action
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        with:
+          repository: hashicorp/integration-release-action
+          path: ./integration-release-action
+      - name: Notify Release
+        uses: ./integration-release-action
+        with:
+          integration_identifier: 'packer/hashicorp/ucloud'
+          release_version: ${{ github.event.inputs.version }}
+          release_sha: ${{ github.event.inputs.branch }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/notify-integration-release-via-tag.yaml

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+name: Notify Integration Release (Tag)
+on:
+  push:
+    tags:
+      - '*.*.*'   # Proper releases
+      - '*.*.*-*' # Pre releases
+jobs:
+  notify-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout this repo
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        with:
+          ref: ${{ github.ref }}
+      # Ensure that Docs are Compiled
+      - uses: actions/setup-go@v4
+      - shell: bash
+        run: make build-docs
+      - shell: bash
+        run: |
+          if [[ -z "$(git status -s)" ]]; then
+            echo "OK"
+          else
+            echo "Docs have been updated, but the compiled docs have not been committed."
+            echo "Run 'make build-docs', and commit the result to resolve this error."
+            exit 1
+          fi
+      # Perform the Release
+      - name: Checkout integration-release-action
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        with:
+          repository: hashicorp/integration-release-action
+          path: ./integration-release-action
+      - name: Notify Release
+        uses: ./integration-release-action
+        with:
+          integration_identifier: 'packer/hashicorp/ucloud'
+          release_version: ${{ github.ref_name }}
+          release_sha: ${{ github.ref }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}

.web-docs/README.md

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+The UCloud plugin is able to build customized images based on an existing base image for use in UHost Instance.
+
+### Installation
+To install this plugin add this code into your Packer configuration and run [packer init](/packer/docs/commands/init)
+
+```hcl
+packer {
+    required_plugins {
+        ucloud = {
+          version = "~> 1"
+          source = "github.com/hashicorp/ucloud"
+        }
+    }
+}
+```
+
+Alternatively, you can use `packer plugins install` to manage installation of this plugin.
+
+```sh
+packer plugins install github.com/hashicorp/ucloud
+```
+### Components
+
+#### Builders
+
+- [ucloud-uhost](/packer/integrations/hashicorp/ucloud/latest/components/builder/uhost) - The `ucloud-uhost` builder provides the capability to build
+  customized images based on an existing base image for use in UHost Instance.
+
+#### Post-processors
+
+- [ucloud-import](/packer/integrations/hashicorp/uhost/latest/components/post-processor/import) - The UCloud Import post-processor takes the RAW, VHD, VMDK, or qcow2
+  artifact from various builders and imports it to UCloud customized image list
+  for UHost Instance.