chore: fix actions/checkout bug

ref: actions/checkout#518

.github/workflows/codeql-analysis.yml

@@ -36,6 +36,8 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v3
+      with:
+        ref: "refs/pull/${{ github.event.number }}/merge"
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/release.yml

@@ -12,9 +12,9 @@ jobs:
 
     - name: Checkout
       uses: actions/checkout@v3
-
-    - name: Unshallow
-      run: git fetch --prune --unshallow
+      with:
+        fetch-depth: 0
+        ref: "refs/pull/${{ github.event.number }}/merge"
 
     - name: Install semantic-release
       run: yarn global add --no-progress --non-interactive "semantic-release" "@semantic-release/exec"
@@ -31,9 +31,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-
-      - name: Unshallow
-        run: git fetch --prune --unshallow
+        with:
+          fetch-depth: 0
+          ref: "refs/pull/${{ github.event.number }}/merge"
 
       - name: Set up Go
         uses: actions/setup-go@v2.1.4

.github/workflows/test.yml

@@ -22,6 +22,8 @@ jobs:
 
     - name: Checkout
       uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
 
     - name: golangci-lint
       uses: golangci/golangci-lint-action@v2.5.2
@@ -41,6 +43,8 @@ jobs:
 
     - name: Checkout
       uses: actions/checkout@v3
+      with:
+        ref: "refs/pull/${{ github.event.number }}/merge"
 
     - name: Test
       run: go test -coverprofile cover.out ./...