Bump go version to 1.22

Updated lint and vuln checks to pin to the version in go.mod file.

.github/workflows/go_test.yml

@@ -6,7 +6,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.20.x, 1.21.x]
+        go-version: [1.22.x, 1.23.x]
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/golangci-lint.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version: 1.17
+          go-version-file: go.mod
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       - name: golangci-lint
         uses: golangci/golangci-lint-action@aaa42aa0628b4ae2578232a66b541047968fac86 # v6.1.0

.github/workflows/govulncheck.yml

@@ -19,5 +19,5 @@ jobs:
       - id: govulncheck
         uses: golang/govulncheck-action@dd0578b371c987f96d1185abb54344b44352bd58 # v1.0.3
         with:
-          go-version-input: 1.21.11
+          go-version-file: go.mod
           go-package: ./...

go.mod

@@ -1,5 +1,5 @@
 module github.com/transparency-dev/merkle
 
-go 1.20
+go 1.22
 
 require github.com/google/go-cmp v0.6.0