Bearer integration (#269)

This is a POC for [bearer](https://docs.bearer.com/), which is a static
scanner for security/privacy vulnerabilities.

While [brakeman](https://brakemanscanner.org/) is Rails-specific, Bearer
adds support for vulnerabilities on the language-level and supports the
following languages:

	1. JavaScript/TypeScript
	2. Ruby
	3. PHP
	4. Java
	5. Go
	6. Python

This PR aims to prove out bearer's effectiveness in the power-tools
repo.

Example failure:

![Screenshot 2024-11-06 at 9 56
43 AM](https://github.com/user-attachments/assets/6d99c673-26e9-4ce5-b03b-44ea3a5e3525)

.github/workflows/reviewdog.yml

@@ -1,21 +1,17 @@
 name: Automated Code Reviews
 on: [pull_request]
 
-permissions:
-  contents: read
-  pull-requests: write
-
 jobs:
   bearer:
-    name: Bearer Security Analysis
+    name: Bearer
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: reviewdog/action-setup@v1
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: reviewdog/action-setup@3f401fe1d58fe77e10d665ab713057375e39b887 # v1
         with:
           reviewdog_version: latest
       - name: Bearer
-        uses: bearer/bearer-action@v2
+        uses: bearer/bearer-action@828eeb928ce2f4a7ca5ed57fb8b59508cb8c79bc # v2
         with:
           diff: true
           format: rdjson