feat(ci): run lint checks in parallel

.drone.yml

@@ -109,6 +109,8 @@ steps:
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix compile --all-warnings --warnings-as-errors
+    depends_on:
+      - 'restore cache'
 
   - name: audit deps
     image: *elixir
@@ -118,30 +120,40 @@ steps:
       - mix deps.audit
       - mix deps.unlock --check-unused
       # - mix hex.outdated
+    depends_on:
+      - 'restore cache'
 
   - name: format check
     image: *elixir
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix format --dry-run --check-formatted
+    depends_on:
+      - 'restore cache'
 
   - name: credo check
     image: *elixir
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix credo suggest --strict --format=flycheck
+    depends_on:
+      - 'restore cache'
 
   - name: dialyzer check
     image: *elixir
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix dialyzer --no-check --quiet --ignore-exit-status --format short
+    depends_on:
+      - 'restore cache'
 
   - name: sobelow check
     image: *elixir
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - mix sobelow
+    depends_on:
+      - 'restore cache'
 
   - name: rebuild cache
     image: *drone_cache
@@ -162,3 +174,8 @@ steps:
       path_style: true
       rebuild: true
       region: us-east-1
+    depends_on:
+      - 'format check'
+      - 'credo check'
+      - 'dialyzer check'
+      - 'sobelow check'