Adding upstream version 2.52.6.

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

.github/workflows/test.yml

@@ -0,0 +1,37 @@
+on:
+  push:
+    branches:
+      - v2
+    paths:
+      - "**"
+      - "!docs/**"
+      - "!**.md"
+  pull_request:
+    paths:
+      - "**"
+      - "!docs/**"
+      - "!**.md"
+
+name: Test
+jobs:
+  Build:
+    strategy:
+      matrix:
+        go-version: [1.17.x, 1.18.x, 1.19.x, 1.20.x, 1.21.x, 1.22.x, 1.23.x]
+        platform: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Fetch Repository
+        uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Run Test
+        uses: nick-fields/retry@v2
+        with:
+          max_attempts: 3
+          timeout_minutes: 15
+          command: go test ./... -v -race -count=1