dropme: remove other drone tasks for faster debugging

.drone.yml

@@ -20,87 +20,6 @@ trigger:
     - push
 
 steps:
-  - name: compute cache key
-    image: docker.io/library/elixir:1.18.3-otp-27
-    commands:
-      - mix_lock_hash=$(sha256sum mix.lock | cut -d ' ' -f 1)
-      - echo "$DRONE_REPO_OWNER/$DRONE_REPO_NAME/$mix_lock_hash" >> .cache_key
-      # Print cache key for debugging
-      - cat .cache_key
-
-  - name: restore-cache
-    image: drillster/drone-volume-cache
-    settings:
-      restore: true
-      mount:
-        - ./deps
-        - ./_build
-      ttl: 30
-    volumes:
-      - name: cache
-        path: /cache
-
-  - name: lint
-    image: docker.io/library/elixir:1.18.3-otp-27
-    commands:
-      # Install hex package manager
-      - mix local.hex --force
-      # Fetch dependencies
-      - mix deps.get
-      # Check for compilation errors & warnings
-      - mix compile --warnings-as-errors
-      # Check formatting
-      - mix format --check-formatted
-      # Security checks
-      - mix sobelow --config
-      # Check dependencies for known vulnerabilities
-      - mix deps.audit
-      # Check for dependencies that are not maintained anymore
-      - mix hex.audit
-      # Provide hints for improving code quality
-      - mix credo
-
-  - name: wait_for_postgres
-    image: docker.io/library/postgres:17.6
-    commands:
-      # Wait for postgres to become available
-      - |
-        for i in {1..20}; do
-          if pg_isready -h postgres -U postgres; then
-            exit 0
-          else
-            true
-          fi
-          sleep 2
-        done
-        echo "Postgres did not become available, aborting."
-        exit 1
-
-  - name: test
-    image: docker.io/library/elixir:1.18.3-otp-27
-    environment:
-      MIX_ENV: test
-      TEST_POSTGRES_HOST: postgres
-      TEST_POSTGRES_PORT: 5432
-    commands:
-      # Install hex package manager
-      - mix local.hex --force
-      # Fetch dependencies
-      - mix deps.get
-      # Run tests
-      - mix test
-
-  - name: rebuild-cache
-    image: drillster/drone-volume-cache
-    settings:
-      rebuild: true
-      mount:
-        - ./deps
-        - ./_build
-    volumes:
-      - name: cache
-        path: /cache
-
   - name: build & publish container?
     image: docker:dind
     volumes: