add: github workflow

.github/workflows/elixir.yml

@@ -30,37 +30,7 @@ jobs:
         restore-keys: ${{ runner.os }}-mix-
     - name: Install dependencies
       run: mix deps.get
-       # Cache key based on Erlang/Elixir version and the mix.lock hash
-    - name: Restore PLT cache
-      id: plt_cache
-      uses: actions/cache/restore@v3
-      with:
-        key: |
-          plt-${{ runner.os }}-${{ steps.beam.outputs.otp-version }}-${{ steps.beam.outputs.elixir-version }}-${{ hashFiles('**/mix.lock') }}
-        restore-keys: |
-          plt-${{ runner.os }}-${{ steps.beam.outputs.otp-version }}-${{ steps.beam.outputs.elixir-version }}-
-        path: |
-          priv/plts
-
-    # Create PLTs if no cache was found
-    - name: Create PLTs
-      if: steps.plt_cache.outputs.cache-hit != 'true'
-      run: mix dialyzer --plt
-
-    # By default, the GitHub Cache action will only save the cache if all steps in the job succeed,
-    # so we separate the cache restore and save steps in case running dialyzer fails.
-    - name: Save PLT cache
-      id: plt_cache_save
-      uses: actions/cache/save@v3
-      if: steps.plt_cache.outputs.cache-hit != 'true'
-      with:
-        key: |
-          plt-${{ runner.os }}-${{ steps.beam.outputs.otp-version }}-${{ steps.beam.outputs.elixir-version }}-${{ hashFiles('**/mix.lock') }}
-        path: |
-          priv/plts
     - name: Compile the project
       run: mix compile
-    - name: Run custom CI task
-      run: mix ci
     - name: Run tests
       run: mix test