Extract workflows dependencies

- Move build dependencies moved to
  `.github/workflows/build-dependencies.txt` shared among workflows.

- Change `ubuntu-latest` -> `ubuntu-20.04` to avoid unexpected
  runner environment updates in `zloop` workflow.

- Change `ubuntu-20.04` -> `ubuntu-latest` to track changes in
  runner environment in `checkstyle` workflow.

- Kernel buffer is flushed before ZTS invocation to avoid storing
  the same data after each test case run.

- `make` is invoked with consistent set of options to reduce
  clutter in logs.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #13037

.github/workflows/checkstyle.yaml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   checkstyle:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
       with:
@@ -14,31 +14,37 @@ jobs:
     - name: Install dependencies
       run: |
         sudo apt-get update
-        sudo apt-get install --yes -qq build-essential autoconf libtool gawk alien fakeroot linux-headers-$(uname -r)
-        sudo apt-get install --yes -qq zlib1g-dev uuid-dev libattr1-dev libblkid-dev libselinux-dev libudev-dev libssl-dev python3 python3-dev python3-setuptools python3-cffi
-        # packages for tests
-        sudo apt-get install --yes -qq parted lsscsi ksh attr acl nfs-kernel-server fio
-        sudo apt-get install --yes -qq mandoc cppcheck pax-utils devscripts
-        sudo -E pip --quiet install flake8
+        sudo xargs --arg-file=${{ github.workspace }}/.github/workflows/build-dependencies.txt apt-get install -qq
+        sudo apt-get install -qq mandoc cppcheck pax-utils devscripts
+        sudo python3 -m pip install --quiet flake8
+        sudo apt-get clean
+
+        # confirm that the tools are installed
+        # the build system doesn't fail when they are not
+        checkbashisms --version
+        cppcheck --version
+        flake8 --version
+        scanelf --version
+        shellcheck --version
     - name: Prepare
       run: |
-        sh ./autogen.sh
+        ./autogen.sh
         ./configure
-        make -j$(nproc)
+        make -j$(nproc) --no-print-directory --silent
     - name: Checkstyle
       run: |
-        make checkstyle
+        make -j$(nproc) --no-print-directory --silent checkstyle
     - name: Lint
       run: |
-        make lint
+        make -j$(nproc) --no-print-directory --silent lint
     - name: CheckABI
       id: CheckABI
       run: |
-        sudo docker run -v $(pwd):/source ghcr.io/openzfs/libabigail make checkabi
+        docker run -v $(pwd):/source ghcr.io/openzfs/libabigail make -j$(nproc) --no-print-directory --silent checkabi
     - name: StoreABI
       if: failure() && steps.CheckABI.outcome == 'failure'
       run: |
-        sudo docker run -v $(pwd):/source ghcr.io/openzfs/libabigail make storeabi
+        docker run -v $(pwd):/source ghcr.io/openzfs/libabigail make -j$(nproc) --no-print-directory --silent storeabi
     - name: Prepare artifacts
       if: failure() && steps.CheckABI.outcome == 'failure'
       run: |