deps: dont upgrade Go using renovate

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

.github/workflows/build-ccm-gcp.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Setup Go environment
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.25.1"
+          go-version: "1.24.6"
           cache: false
 
       - name: Install Crane

.github/workflows/build-os-image-scheduled.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Setup Go environment
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.25.1"
+          go-version: "1.24.6"
           cache: false
 
       - name: Determine version

.github/workflows/codeql.yml

@@ -40,7 +40,7 @@ jobs:
         if: matrix.language == 'go'
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.25.1"
+          go-version: "1.24.6"
           cache: false
 
       - name: Initialize CodeQL

.github/workflows/release.yml

@@ -273,7 +273,7 @@ jobs:
       - name: Setup Go environment
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.25.1"
+          go-version: "1.24.6"
           cache: true
 
       - name: Build generateMeasurements tool

.github/workflows/test-operator-codegen.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Go environment
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.25.1"
+          go-version: "1.24.6"
           cache: true
 
       - name: Run code generation

renovate.json5

@@ -28,6 +28,8 @@
     'operators/constellation-node-operator/config/manager/kustomization.yaml',
   ],
   ignoreDeps: [
+    // Go requires manual updates
+    'go',
     // Newer version install different versions of nix, breaking reproducibility
     'cachix/install-nix-action',
     'github.com/edgelesssys/constellation/v2',