ci: add dependabot for GitHub actions, update golangci-lint

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+    commit-message:
+      prefix: "ci:"
+    open-pull-requests-limit: 5
+    rebase-strategy: disabled
+    labels:
+    - area/testing
+    - area/github-actions
+    - kind/enhancement

.github/workflows/tests.yml

@@ -18,16 +18,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Install Go
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
       with:
         go-version: ${{ matrix.go-version }}
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
     - name: Run static checks
-      uses: golangci/golangci-lint-action@v3
+      uses: golangci/golangci-lint-action@0ad9a0988b3973e851ab0a07adf248ec2e100376
       with:
-        version: v1.48.0
-        args: --config=.golangci.yml --verbose
+        version: v1.50.1
+        # use our .golangci.yml and configure output to be logged in the GHA, in addition to annotating the commit.
+        # see https://github.com/golangci/golangci-lint-action/issues/119#issuecomment-981090648 for output
+        args: --config=.golangci.yml --verbose --out-${NO_FUTURE}format colored-line-number --timeout 5m
         skip-cache: true
     - name: Build
       run: go build

.golangci.yml

@@ -1,6 +1,9 @@
 # See https://golangci-lint.run/usage/configuration/ for available options.
 # Also https://github.com/cilium/cilium/blob/master/.golangci.yaml as a
 # reference.
+run:
+  go: '1.19'
+  timeout: 1m
 linters:
   disable-all: true
   enable:
@@ -11,10 +14,10 @@ linters:
     - containedctx
     - contextcheck
     - cyclop
-    - deadcode
     - decorder
     - dogsled
     - dupl
+    - dupword
     - durationcheck
     - errcheck
     - errname
@@ -37,20 +40,22 @@ linters:
     - govet
     - grouper
     - ineffassign
+    - interfacebloat
     - ireturn
     - makezero
     - misspell
     - nakedret
     - nestif
     - nilerr
     - nilnil
+    - noctx
     - nosprintfhostport
     - prealloc
     - predeclared
+    - reassign
     - revive
     - rowserrcheck
     - staticcheck
-    - structcheck
     - tenv
     - thelper
     - tparallel
@@ -59,7 +64,6 @@ linters:
     - unparam
     - unused
     - usestdlibvars
-    - varcheck
     - wastedassign
 
 linters-settings:
@@ -70,13 +74,5 @@ linters-settings:
     template: |-
       SPDX-License-Identifier: Apache-2.0
       Copyright Authors of Cilium
-  gosimple:
-    go: "1.19"
   govet:
     enable-all: true
-  staticcheck:
-    go: "1.19"
-  stylecheck:
-    go: "1.19"
-  unused:
-    go: "1.19"