Merge pull request 'Fix PR coverage comment posting in CI.' (#17) from fix/coverage-pr-comment into main

Reviewed-on: https://gitea.lille-vemmelund.dk/brian/python-repositories/pulls/17

.gitea/workflows/test.yml

@@ -40,9 +40,20 @@ jobs:
           PR_NUMBER: ${{ github.event.pull_request.number }}
           CI_RUNNER_TOKEN: ${{ secrets.CI_RUNNER_TOKEN }}
         run: |
-          COVERAGE=$(cat coverage.txt)
-          COMMENT_BODY="**Test Coverage Report:**\n\`\`\`\n$COVERAGE\n\`\`\`"
-          curl -s -X POST "$API_URL/repos/$REPO_OWNER/$REPO_NAME/issues/$PR_NUMBER/comments" \
+          PAYLOAD=$(python3 -c '
+          import json
+          import pathlib
+
+          coverage = pathlib.Path("coverage.txt").read_text()
+          print(
+              json.dumps(
+                  {
+                      "body": f"**Test Coverage Report:**\n```\n{coverage}\n```",
+                  }
+              )
+          )
+          ')
+          curl -sf -X POST "$API_URL/repos/$REPO_OWNER/$REPO_NAME/issues/$PR_NUMBER/comments" \
             -H "Authorization: token $CI_RUNNER_TOKEN" \
             -H "Content-Type: application/json" \
-            -d "{\"body\": \"$COMMENT_BODY\"}"
+            -d "$PAYLOAD"