build(deps): bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     container: tendermintdev/docker-tm-db-testing
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: test & coverage report creation
         run: |
           CGO_ENABLED=1 go test ./... -mod=readonly -timeout 8m -race -coverprofile=coverage.txt -covermode=atomic -tags=memdb,goleveldb,cleveldb,boltdb,rocksdb,badgerdb -v

.github/workflows/docker.yml

@@ -21,7 +21,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Prepare
         id: prep
         run: |

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     container: tendermintdev/docker-tm-db-testing
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: golangci/[email protected]
         with:
           args: --timeout 10m