.github: ensure regression tests do not run in parallel

At least the sysvpart.sh regression test cannot run in parallel yet with
other tests (probably runparts.sh), so we must ensure the tests never
run in parallel, in particular at release.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

.github/workflows/release.yml

@@ -13,8 +13,6 @@ jobs:
     name: Build and upload release tarball
     if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
-    env:
-      MAKEFLAGS: -j3
     steps:
       - uses: actions/checkout@v4
       - name: Installing dependencies ...
@@ -25,8 +23,8 @@ jobs:
           wget https://github.com/troglobit/libite/releases/download/v2.6.2/libite-2.6.2.tar.gz
           tar xf libuev-2.4.1.tar.xz
           tar xf libite-2.6.2.tar.gz
-          (cd libuev-2.4.1 && ./configure && make && sudo make install-strip)
-          (cd libite-2.6.2 && ./configure && make && sudo make install-strip)
+          (cd libuev-2.4.1 && ./configure && make -j9 && sudo make install-strip)
+          (cd libite-2.6.2 && ./configure && make -j9 && sudo make install-strip)
           sudo ldconfig
       - name: Setting release variables ...
         id: build
@@ -60,7 +58,7 @@ jobs:
           ver=$(./configure --version | head -1 | awk '{print $NF}')
           dir=finit-$ver/_build/sub
 
-          make release || (cat $dir/test/test-suite.log; false)
+          make -j1 release || (cat $dir/test/test-suite.log; false)
           ls -lF ../
           mkdir -p artifacts/
           mv ../*.tar.* artifacts/