Install conan using pipx on Linux as well

.github/workflows/linux.yaml

@@ -43,15 +43,15 @@ jobs:
           max-size: "2G"
       - name: Run vcpkg
         uses: lukka/run-vcpkg@v11
-      - name: Install Conan
-        id: conan
-        uses: turtlebrowser/get-conan@main
-      - name: Create default profile
-        run: conan profile detect
       - name: Install dependencies
         run: |
           sudo apt update
           sudo apt install -y ninja-build ${{ matrix.additional-dep }}
+      - name: Install Conan
+        run: |
+          sudo apt install -y pipx
+          pipx install conan
+          conan profile detect
       - name: Make sure the library compiles with Conan
         run: conan build . --build=missing -s compiler.cppstd=gnu20 -o *:with_cbor=True -o *:with_flatbuffers=True -o *:with_msgpack=True -o *:with_toml=True -o *:with_ubjson=True -o *:with_xml=True -o *:with_yaml=True      
       - name: Compile