get rid of workflow specific caching as not needed with improved hand…

…ling of the test environment

.github/actions/install-julia/action.yaml

@@ -16,20 +16,25 @@ runs:
         key: julia-binary-${{ inputs.version }}
         restore-keys: |
           julia-binary-${{ inputs.version }}
+
     - name: Install Julia
       if: steps.cache-julia.outputs.cache-hit != 'true'
       run: |
         mkdir -p ~/julia
         version=$(echo ${{ inputs.version }} | cut -d. -f1,2)
         wget https://julialang-s3.julialang.org/bin/linux/x64/$version/julia-${{ inputs.version }}-linux-x86_64.tar.gz -O ~/julia/julia.tar.gz
       shell: bash
-    - run: tar -xzf ~/julia/julia.tar.gz -C ~/julia --strip-components=1
+
+    - name: Unzip Julia
+      run: tar -xzf ~/julia/julia.tar.gz -C ~/julia --strip-components=1
       shell: bash
+
     - run: echo "$HOME/julia/bin" >> $GITHUB_PATH
       shell: bash
+
     - uses: actions/cache@v3
       with:
         path: |
           ~/.julia
           ~/.cache/julia
-        key: julia-${{ inputs.version }}-${{ github.workflow }}-${{ hashFiles('**/*.toml') }}
+        key: julia-${{ inputs.version }}-${{ hashFiles('**/*.toml') }}