[ci] update Go version

Author: pmazzini

.github/workflows/cifuzz.yml

@@ -21,7 +21,7 @@ jobs:
        fuzz-seconds: 300
        output-sarif: true
    - name: Upload Crash
-     uses: actions/upload-artifact@v3
+     uses: actions/upload-artifact@v4
      if: failure() && steps.build.outcome == 'success'
      with:
        name: artifacts

.github/workflows/tests.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.20', '1.21']
+        go: ['1.23', '1.24']
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.20', '1.21']
+        go: ['1.23', '1.24']
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4