Fix labels not being tick quoted

Author: brancz

.github/workflows/github-actions-demo.yml

@@ -27,4 +27,4 @@ jobs:
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
       - name: Run my little go program that does busy work.
         run: cd example-process && go run main.go
-      - run: echo "🍏 This job's status is ${{ job.status }}." && sleep 300
+      - run: echo "🍏 This job's status is ${{ job.status }}." && sleep 60

index.js

@@ -83,7 +83,7 @@ async function run() {
     const tempLogFile = path.join(process.env.RUNNER_TEMP || '/tmp', 'parca-agent.log');
 
     const args = [
-      `--metadata-external-labels='${labelsString}'`,
+      `--metadata-external-labels=${labelsString}`,
       `--profiling-duration=${profilingDuration}`,
       `--profiling-cpu-sampling-frequency=${profilingFrequency}`,
       '--node=github',