chore(deps): update dependency go to 1.25.x

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -47,7 +47,7 @@ jobs:
     - name: Setup Go environment
       uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
       with:
-        go-version: '1.24.x'
+        go-version: '1.25.x'
 
     # at some point this should just be replaced with something that can bring up a sigstore test env
     - name: Install Fulcio