chore: pre-release comments addressed (#387)

### Description

(PR description goes here)

### Checklist

- [ ] `README.md` has been updated or is not required
- [ ] push trigger tests
- [ ] manual release test
- [ ] automated releases test
- [ ] pull request trigger tests
- [ ] schedule trigger tests
- [ ] workflow errors/warnings reviewed and addressed

### Testing done 
(for each selected checkbox, the corresponding test results link should
be listed here)

Author: mkolasinski-splunk

.github/workflows/reusable-build-test-release.yml

@@ -56,7 +56,7 @@ on:
         required: false
         description: "Forces WFE tests to run only on the latest Splunk when set to true. When set to false - will run on all supported Splunk versions required for the release. When not set - default behavior."
         type: string
-        default: ""
+        default: "false"
     secrets:
       GH_TOKEN_ADMIN:
         description: Github admin token