use working dir instead of manual cd

Author: tmthecoder

.github/workflows/dart-build.yml

@@ -4,15 +4,18 @@ on:
   push:
   pull_request:
 
+defaults:
+  run:
+    working-directory: dargon2
+
 jobs:
   test:
     runs-on: ubuntu-latest
     container:
       image:  google/dart:latest
     steps:
     - uses: actions/checkout@v2
+    - name: Install dependencies
+      run: pub get
     - name: Run tests
-      run: |
-        cd dargon2
-        pub get
-        pub run test
+      run: pub run test

.github/workflows/docbot.yml

@@ -4,6 +4,10 @@ on:
  push:
    branches: [ main ]
 
+defaults:
+  run:
+    working-directory: dargon2 
+
 jobs:
  update-docs:
 

.github/workflows/library-builder.yml

@@ -2,6 +2,11 @@ name: Library Builder CI
 
 on:
   repository_dispatch:
+  workflow_dispatch: 
+
+defaults:
+  run:
+    working-directory: dargon2
 
 jobs:
   linux-build: