chore(gh): add docs hcl workflow

Reviews the formatting of the HCL in the both `docs/` and `examples/` using `terrafmt` and the `GNUmakefile`.

Signed-off-by: Ryan Johnson <ryan.johnson@broadcom.com>

Author: tenthirtyam

.github/workflows/docs.yml

@@ -0,0 +1,18 @@
+name: Check Documentation
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - name: Install Tools
+      run: make tools
+    - name: Check HCL in Documentation
+      run: make docs-hcl-lint