chore: pin go version in CI (#2398)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>

.github/workflows/lint.yml

@@ -23,7 +23,8 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version-file: 'go.mod'
+          # renovate: golang=go
+          go-version: '1.26.2'
 
       - name: Test
         run: make test
@@ -46,7 +47,8 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version-file: 'go.mod'
+          # renovate: golang=go
+          go-version: '1.26.2'
 
       - name: Install promtool
         run: |
@@ -85,7 +87,8 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version-file: 'go.mod'
+          # renovate: golang=go
+          go-version: '1.26.2'
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9.2.0

.github/workflows/release.yml

@@ -29,7 +29,8 @@ jobs:
 
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
-          go-version-file: 'go.mod'
+          # renovate: golang=go
+          go-version: '1.26.2'
 
       - name: Install WiX
         run: |

renovate.json

@@ -33,6 +33,22 @@
       ],
       "enabled": false
     },
+    {
+      "enabled": false,
+      "matchBaseBranches": ["/^[0-9]\\.[0-9][0-9]$/"],
+      "matchPackageNames": [
+        "github.com/golangci/golangci-lint/cmd/golangci-lint",
+        "golangci/golangci-lint",
+        "golangci/golangci-lint-action"
+      ]
+    },
+    {
+      "enabled": true,
+      "matchManagers": ["gomod"],
+      "matchDepNames": ["go"],
+      "matchDepTypes": ["golang"],
+      "rangeStrategy": "bump"
+    },
     {
       "groupName": "golangci-lint",
       "matchPackageNames": [