simplify github workflows

.github/workflows/lint-packages-dashboard.yml

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+name: Lint - packages/dashboard
+
+on:
+  pull_request:
+    paths:
+      - packages/dashboard/**
+
+defaults:
+  run:
+    working-directory: packages/dashboard
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - run: yarn
+      - run: yarn prettier --check .

.github/workflows/lint-packages-dnslink-api.yml

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+name: Lint - packages/dnslink-api
+
+on:
+  pull_request:
+    paths:
+      - packages/dnslink-api/**
+
+defaults:
+  run:
+    working-directory: packages/dnslink-api
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - run: yarn
+      - run: yarn prettier --check .

.github/workflows/lint-packages-handshake-api.yml

@@ -0,0 +1,23 @@
+name: Lint - packages/handshake-api
+
+on:
+  pull_request:
+    paths:
+      - packages/handshake-api/**
+
+defaults:
+  run:
+    working-directory: packages/handshake-api
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - run: yarn
+      - run: yarn prettier --check .

.github/workflows/lint-packages-health-check.yml

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+name: Lint - packages/health-check
+
+on:
+  pull_request:
+    paths:
+      - packages/health-check/**
+
+defaults:
+  run:
+    working-directory: packages/health-check
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - run: yarn
+      - run: yarn prettier --check .

.github/workflows/lint-packages-website.yml

@@ -0,0 +1,23 @@
+name: Lint - packages/website
+
+on:
+  pull_request:
+    paths:
+      - packages/website/**
+
+defaults:
+  run:
+    working-directory: packages/website
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 16.x
+
+      - run: yarn
+      - run: yarn prettier --check .

.github/workflows/lint-python.yml

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+name: Lint - Python Scripts
+
+on:
+  push:
+    paths:
+      - "**.py"
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+          architecture: x64
+
+      - run: pip install black
+      - run: black --check .
+
+  flake8:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+          architecture: x64
+
+      - run: pip install flake8
+
+      # E203: https://www.flake8rules.com/rules/E203.html - Whitespace before ':'
+      # E501: https://www.flake8rules.com/rules/E501.html - Line too long
+      # W503: https://www.flake8rules.com/rules/W503.html - Line break occurred before a binary operator
+      # W605: https://www.flake8rules.com/rules/W605.html - Invalid escape sequence
+      # E722: https://www.flake8rules.com/rules/E722.html - Do not use bare except, specify exception instead
+      - run: flake8 --max-line-length 88 --ignore E203,E501,W503,W605,E722