fix go versions

.github/workflows/ci.yaml

@@ -4,7 +4,7 @@ jobs:
   build:
     strategy:
       matrix:
-        version: [1.21]
+        version: [1.23]
         os: [ubuntu-latest, windows-latest, macos-latest]
     name: Build
     runs-on: ${{ matrix.os }}
@@ -41,7 +41,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v5
         with:
-          go-version: 1.21
+          go-version: 1.23
       - uses: actions/checkout@v4
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v7

.github/workflows/release.yaml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.22.11
+          go-version: 1.23.5
 
       - name: Build the executables
         run: ./mkrel.sh kleingebaeck ${{ github.ref_name}}