CI: -j4 with lin/win runners

https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories

.github/workflows/build.yml

@@ -11,7 +11,7 @@ on:
 env:
   REMOVE_BUNDLED_BOOST : rm -rf /usr/local/share/boost
   BUILD_DEFAULT_LINUX: |
-        cmake -S . -B build -D ARCH="default" -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=Release && cmake --build build -j3
+        cmake -S . -B build -D ARCH="default" -D BUILD_TESTS=ON -D CMAKE_BUILD_TYPE=Release && cmake --build build --parallel 4
   APT_INSTALL_LINUX: 'sudo apt -y install build-essential cmake libboost-all-dev miniupnpc libunbound-dev graphviz doxygen libunwind8-dev pkg-config libssl-dev libzmq3-dev libsodium-dev libhidapi-dev libnorm-dev libusb-1.0-0-dev libpgm-dev libprotobuf-dev protobuf-compiler ccache'
   APT_SET_CONF: |
         echo "Acquire::Retries \"3\";"         | sudo tee -a /etc/apt/apt.conf.d/80-custom
@@ -75,7 +75,7 @@ jobs:
     - name: build
       run: |
         ${{env.CCACHE_SETTINGS}}
-        make release-static-win64 -j2
+        make release-static-win64 -j4
 
 # See the OS labels and monitor deprecations here:
 # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
@@ -134,7 +134,7 @@ jobs:
       run: |
         ${{env.CCACHE_SETTINGS}}
         cmake .
-        make wallet_api -j3
+        make wallet_api -j4
 
   test-ubuntu:
     needs: build-ubuntu

.github/workflows/depends.yml

@@ -96,7 +96,7 @@ jobs:
     - name: build
       run: |
         ${{env.CCACHE_SETTINGS}}
-        make depends target=${{ matrix.toolchain.host }} -j2
+        make depends target=${{ matrix.toolchain.host }} -j4
     - uses: actions/upload-artifact@v3
       if: ${{ matrix.toolchain.host == 'x86_64-w64-mingw32' || matrix.toolchain.host == 'x86_64-apple-darwin11' || matrix.toolchain.host == 'x86_64-unknown-linux-gnu' }}
       with: