add fetch-depth: 0

Getting this error

changecalc/changecalc > changed-packages.txt || echo "./..." > changed-packages.txt
fatal: bad revision 'main'
failed to execute [git diff main --name-only -- .]: exit status 128

https://stackoverflow.com/a/76769122

.github/workflows/push.yml

@@ -72,6 +72,8 @@ jobs:
     steps:
       - name: Checkout repository and submodules
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup Go
         uses: actions/setup-go@v5