Golang version upgrade (#57)

Author: camcast3

.github/workflows/release.yml

@@ -10,7 +10,7 @@ jobs:
   release:
     uses: itzg/github-workflows/.github/workflows/go-with-releaser-image.yml@main
     with:
-      go-version: "1.20.10"
+      go-version: "1.21.10"
     secrets:
       image-registry-username: ${{ secrets.DOCKERHUB_USERNAME }}
       image-registry-password: ${{ secrets.DOCKERHUB_TOKEN }}

.github/workflows/test.yml

@@ -14,4 +14,4 @@ jobs:
   build:
     uses: itzg/github-workflows/.github/workflows/go-test.yml@main
     with:
-      go-version: "1.20.10"
+      go-version: "1.21.10"

go.mod

@@ -29,4 +29,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-go 1.20
+go 1.21