chore: upgrade to Go 1.21 (#263)

Part of #161

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
       - release/**
 
 env:
-  GO_VERSION: '1.20'
+  GO_VERSION: '1.21'
 
 jobs:
   test:

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ on:
       - release/**
 
 env:
-  GO_VERSION: '1.20'
+  GO_VERSION: '1.21'
 
 jobs:
   golangci-lint:
@@ -23,6 +23,6 @@ jobs:
           go-version: ${{ env.GO_VERSION }}
       - uses: golangci/[email protected]
         with:
-          version: v1.52.2
+          version: v1.54.0
           args: --timeout 10m
           github-token: ${{ secrets.github_token }}

README.md

@@ -69,7 +69,7 @@ func main() {
 
 ## Contributing
 
-1. [Install Go](https://go.dev/doc/install) 1.20+
+1. [Install Go](https://go.dev/doc/install) 1.21+
 1. [Install golangci-lint](https://golangci-lint.run/usage/install/)
 
 ### Helpful Commands

go.mod

@@ -1,6 +1,6 @@
 module github.com/celestiaorg/rsmt2d
 
-go 1.20
+go 1.21
 
 require (
 	github.com/celestiaorg/merkletree v0.0.0-20210714075610-a84dc3ddbbe4

go.sum

@@ -8,6 +8,7 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
+github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/klauspost/cpuid/v2 v2.0.4/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
@@ -28,8 +29,11 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/tidwall/gjson v1.14.4 h1:uo0p8EbA09J7RQaflQ1aBRffTR7xedD2bcIVSYxLnkM=
+github.com/tidwall/gjson v1.14.4/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
+github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
 github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
+github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 gitlab.com/NebulousLabs/errors v0.0.0-20171229012116-7ead97ef90b8/go.mod h1:ZkMZ0dpQyWwlENaeZVBiQRjhMEZvk6VTXquzl3FOFP8=