test-build.yml: Run test-docs-build on its own

.github/workflows/test-build.yml

@@ -183,10 +183,8 @@ jobs:
   test-docs-build:
     name: Try build docs
     runs-on: [self-hosted, linux, x64]
-    needs: [test-docs, pre_docs_job]
+    needs: [pre_docs_job]
     if: needs.pre_docs_job.outputs.should_skip != 'true'
-    env:
-      CC: clang
     strategy:
       matrix:
         docs-target: [html, latexpdf]
@@ -199,17 +197,13 @@ jobs:
         run: |
           echo "procs=$(nproc)" >> $GITHUB_ENV
 
-      - name: Download build artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: build-ubuntu-latest
-
-      - name: Uncompress build
-        shell: bash
-        run:
-          tar -xvf build.tar
+      - name: Build Yosys
+        run: |
+          make config-clang
+          echo "ENABLE_CCACHE := 1" >> Makefile.conf
+          make -j${{ env.procs }}
 
       - name: Build docs
         shell: bash
         run: |
-          make docs DOC_TARGET=${{ matrix.docs-target }} TARGETS= EXTRA_TARGETS= CONFIG=$CC
+          make docs DOC_TARGET=${{ matrix.docs-target }}