create and run venv in the beginning of the pipeline

Author: patapenka-alexey

.github/workflows/packing.yml

@@ -491,8 +491,15 @@ jobs:
       - name: Remove connector source code
         run: python3 .github/scripts/remove_source_code.py
 
+      - name: Create venv
+        run: |
+          apt install -y python3-venv
+          python3 -m venv .venv
+
+
       - name: Install tarantool ${{ matrix.tarantool }}
         run: |
+          . .venv/bin/activate
           apt install -y curl
           curl -L https://tarantool.io/release/2/installer.sh | bash
           apt install -y tarantool tarantool-dev
@@ -506,15 +513,12 @@ jobs:
           path: deb_dist
 
       - name: Install the package from deb artifacts
-        run: apt install -y `pwd`/deb_dist/python3-tarantool_*.deb
+        run: |
+          . .venv/bin/activate
+          apt install -y `pwd`/deb_dist/python3-tarantool_*.deb
         env:
           DEBIAN_FRONTEND: noninteractive
 
-      - name: Create venv
-        run: |
-          apt install -y python3-venv
-          python3 -m venv .venv
-
       - name: Install test requirements
         run: |
           . .venv/bin/activate
@@ -524,14 +528,13 @@ jobs:
         run: |
           . .venv/bin/activate
           curl -L https://tarantool.io/release/2/installer.sh | bash
+          apt install -y cmake=3.15.3
           apt install -y tt
-          pip3 install cmake==3.15.3
           tt rocks install crud
 
       - name: Run tests
         run: |
           . .venv/bin/activate
-          pip3 install pyyaml
           make test-pure-install
 
   publish_deb: