refactor(ci): consolidate validation into test matrix for consistency

Reorganized the GitHub workflow to run documentation validation within the test
job matrix instead of as a separate job. This ensures validation and tests run
in identical environments.

Changes:
- Removed separate validate-docs job (was using mise-action@v2 with v2025.1.6)
- Added validation step within test job (uses mise-action@v3 with v2025.11.2)
- Validation now runs for all PostgreSQL versions (17, 16, 15, 14)

This eliminates the environment mismatch that was causing validation to fail
while tests passed. Both now use the same mise version, setup, and PostgreSQL
configuration.

Author: tobyhede

.github/workflows/test-eql.yml

@@ -26,31 +26,9 @@ defaults:
     shell: bash -l {0}
 
 jobs:
-  validate-docs:
-    name: "Validate SQL Documentation"
-    runs-on: ubuntu-latest-m
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: jdx/mise-action@v2
-        with:
-          version: 2025.1.6
-          install: true
-          cache: true
-
-      - name: Setup database
-        run: |
-          mise run postgres:up --extra-args "--detach --wait"
-
-      - name: Validate SQL documentation
-        run: |
-          mise run docs:validate
-
   test:
-    name: "Test EQL SQL components"
+    name: "Test & Validate EQL (Postgres ${{ matrix.postgres-version }})"
     runs-on: ubuntu-latest-m
-    needs: validate-docs
 
     strategy:
       fail-fast: false
@@ -73,6 +51,10 @@ jobs:
         run: |
           mise run postgres:up postgres-${POSTGRES_VERSION} --extra-args "--detach --wait"
 
+      - name: Validate SQL documentation (Postgres ${{ matrix.postgres-version }})
+        run: |
+          mise run docs:validate
+
       - name: Test EQL for Postgres ${{ matrix.postgres-version }}
         run: |
           export active_rust_toolchain=$(rustup show active-toolchain | cut -d' ' -f1)