chore(deps): update anthropics/claude-code-action digest to 20c8abf

Author: renovate[bot]

.github/workflows/father.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Run Father
         id: father
-        uses: anthropics/claude-code-action@51ea8ea73a139f2a74ff649e3092c25a904aed7e # v1
+        uses: anthropics/claude-code-action@20c8abf165d5f85ab3fc970db9498436377dc9d1 # v1
         with:
           trigger_phrase: '@father'
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}

.github/workflows/mother.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Run Mother
         id: mother
-        uses: anthropics/claude-code-action@51ea8ea73a139f2a74ff649e3092c25a904aed7e # v1
+        uses: anthropics/claude-code-action@20c8abf165d5f85ab3fc970db9498436377dc9d1 # v1
         with:
           trigger_phrase: '@mother'
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}