fix(ci): avoid "Argument list too long" in yarn-dedupe-push (#7666)

The base64-encoded yarn.lock content was passed as a shell argument to
`gh api`, exceeding the Linux ARG_MAX limit. Write the base64 output to
a temp file and use `jq --rawfile` + `gh api --input -` to keep large
payloads off the command line.

Author: watson

.github/workflows/project.yml

@@ -228,10 +228,12 @@ jobs:
 
           test -f "${{ runner.temp }}/yarn-lock-artifact/yarn.lock"
           sha="$(gh api -q '.sha' "repos/${OWNER}/${REPO}/contents/yarn.lock?ref=${BRANCH}")"
-          content="$(base64 -w 0 "${{ runner.temp }}/yarn-lock-artifact/yarn.lock")"
-
-          gh api -X PUT "repos/${OWNER}/${REPO}/contents/yarn.lock" \
-            -f message="chore: deduplicate yarn.lock" \
-            -f content="${content}" \
-            -f sha="${sha}" \
-            -f branch="${BRANCH}"
+          base64 -w 0 "${{ runner.temp }}/yarn-lock-artifact/yarn.lock" > "${{ runner.temp }}/yarn-lock-b64.txt"
+
+          jq -n \
+            --arg message "chore: deduplicate yarn.lock" \
+            --rawfile content "${{ runner.temp }}/yarn-lock-b64.txt" \
+            --arg sha "$sha" \
+            --arg branch "$BRANCH" \
+            '{message: $message, content: $content, sha: $sha, branch: $branch}' \
+          | gh api -X PUT "repos/${OWNER}/${REPO}/contents/yarn.lock" --input -