tics: Fixes TICS nightly job

We don't have any unit tests for this project, but TICS expects the
cover folder to exist.

TICS will try to use pylint and flake8 to analyze the project's code.
We need to install them beforehand.

Signed-off-by: Claudiu Belu <claudiu.belu@canonical.com>

.github/workflows/cron-jobs.yaml

@@ -3,6 +3,7 @@ name: Security and quality nightly scan
 on:
   schedule:
     - cron: '0 10 * * *'
+  pull_request:
 
 permissions:
   contents: read
@@ -22,6 +23,21 @@ jobs:
       - name: Checking out repo
         uses: actions/checkout@v4
 
+      - name: Install Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install Python dependencies
+        run: |
+          # pylint and flake8 are required by TICSQServer.
+          pip install pylint flake8 pytest
+
+          sudo apt install libbtrfsutil-dev
+          pip wheel -w wheels/ "https://github.com/kdave/btrfs-progs/archive/refs/tags/v6.3.2.tar.gz#egg=btrfsutil&subdirectory=libbtrfsutil/python"
+          pip install wheels/*
+          pip install -r requirements.txt
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
@@ -33,6 +49,9 @@ jobs:
 
           set -x
 
+          # We don't have any unit tests for this project, but TICS expects this folder to exist.
+          mkdir -p cover
+
           # Install the TICS and staticcheck
           go install honnef.co/go/tools/cmd/staticcheck@v0.5.1
           . <(curl --silent --show-error 'https://canonical.tiobe.com/tiobeweb/TICS/api/public/v1/fapi/installtics/Script?cfg=default&platform=linux&url=https://canonical.tiobe.com/tiobeweb/TICS/')