Adding upstream version 2.2.2.

Signed-off-by: Daniel Baumann <daniel@debian.org>

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: test
+on:
+  pull_request:
+    paths-ignore:
+      - '*.md'
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - '*.md'
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    timeout-minutes: 3
+    steps:
+      - uses: actions/setup-go@v5
+        with:
+          go-version: 1.21
+      - uses: actions/checkout@v4
+      - run: go test ./... -race -coverprofile=coverage.txt -covermode=atomic
+      - name: Codecov
+        uses: codecov/codecov-action@v4.1.0
+        with:
+          files: ./coverage.txt