ci: add PR format check workflow

**Description**:

Add a new workflow to check the PR formatting to ensure consistency on
PR titles. We can also use this for semantic release versioning later,
if we so desire.

**Related Issue(s)**:

Implements first portion of #327

Signed-off-by: Andrew Brandt <brandt.andrew89@gmail.com>

.github/workflows/pr-formatting-check.yml

@@ -0,0 +1,37 @@
+name: "PR Formatting"
+
+on:
+  pull_request_target:
+    types:
+      - assigned
+      - unassigned
+      - labeled
+      - unlabeled
+      - opened
+      - reopened
+      - edited
+      - converted_to_draft
+      - ready_for_review
+      - review_requested
+      - review_request_removed
+      - locked
+      - unlocked
+      - synchronize
+
+permissions:
+  statuses: write
+
+jobs:
+  title-check:
+    name: Title Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
+        with:
+          egress-policy: audit
+
+      - name: Check PR Title
+        uses: step-security/conventional-pr-title-action@101b3d5adffb51b5789997fea508c8313c8ddf02 # v3.2.2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}