Send valid JSON to autosync workflows for multi-line commit messages (#1981)

Allow multi-line commit message to be used in autosync workflows using the toJSON context function. The toJSON function is required to pretty-print JSON objects to the log.

.github/workflows/autoSyncMergedPullRequest.yml

@@ -28,6 +28,6 @@ jobs:
                         "ref": "${{ github.ref }}",
                         "prNumber": "${{ github.event.pull_request.number }}",
                         "prTitle": "${{ github.event.pull_request.title }}",
-                        "prDescription": "${{ github.event.pull_request.description }}",
+                        "prDescription": "${{ toJSON(github.event.pull_request.description) }}",
                         "sha": "${{ github.sha }}"
                       }

.github/workflows/autoSyncSingleCommit.yml

@@ -32,5 +32,5 @@ jobs:
                       {
                         "ref": "${{ github.ref }}",
                         "sha": "${{ github.sha }}",
-                        "commitMessage": "${{ github.event.commits[0].message }}"
+                        "commitMessage": "${{ toJSON(github.event.commits[0].message) }}"
                       }