Update ci.yml - revert to parallel builds except for tests.

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  NPROC: 1
+  NPROC: 2
   MAKEFLAGS: "-j${NPROC}"
   NIMFLAGS: "--parallelBuild:${NPROC} --colors:off -d:chronicles_colors:none"
 
@@ -111,15 +111,15 @@ jobs:
 
       - name: Run tests
         run: |
-          if [ ${{ runner.os }} == "Linux" ]; then
-            sudo docker run --rm -d -e POSTGRES_PASSWORD=test123 -p 5432:5432 postgres:15.4-alpine3.18
-          fi
-
           postgres_enabled=0
           if [ ${{ runner.os }} == "Linux" ]; then
+            sudo docker run --rm -d -e POSTGRES_PASSWORD=test123 -p 5432:5432 postgres:15.4-alpine3.18
             postgres_enabled=1
           fi
 
+          export MAKEFLAGS="-j1"
+          export NIMFLAGS="--colors:off -d:chronicles_colors:none"
+          
           make RLN_V${{matrix.rln_version}}=true V=1 LOG_LEVEL=DEBUG QUICK_AND_DIRTY_COMPILER=1 POSTGRES=$postgres_enabled test testwakunode2
 
   build-docker-image: