[misc] Add hatch, ruff, pre-commit and improve dev docs (#7409)

Authored by: bashonly, seproDev, Grub4K

Co-authored-by: bashonly <88596187+bashonly@users.noreply.github.com>
Co-authored-by: sepro <4618135+seproDev@users.noreply.github.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -28,7 +28,6 @@ Fixes #
 ### Before submitting a *pull request* make sure you have:
 - [ ] At least skimmed through [contributing guidelines](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#developer-instructions) including [yt-dlp coding conventions](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#yt-dlp-coding-conventions)
 - [ ] [Searched](https://github.com/yt-dlp/yt-dlp/search?q=is%3Apr&type=Issues) the bugtracker for similar pull requests
-- [ ] Checked the code with [flake8](https://pypi.python.org/pypi/flake8) and [ran relevant tests](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#developer-instructions)
 
 ### In order to be accepted and merged into yt-dlp each piece of code must be in public domain or released under [Unlicense](http://unlicense.org/). Check all of the following options that apply:
 - [ ] I am the original author of this code and I am willing to release it under [Unlicense](http://unlicense.org/)

.github/workflows/core.yml

@@ -53,7 +53,7 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install test requirements
-      run: python3 ./devscripts/install_deps.py --include dev --include curl-cffi
+      run: python3 ./devscripts/install_deps.py --include test --include curl-cffi
     - name: Run tests
       continue-on-error: False
       run: |

.github/workflows/quick-test.yml

@@ -15,13 +15,13 @@ jobs:
       with:
         python-version: '3.8'
     - name: Install test requirements
-      run: python3 ./devscripts/install_deps.py --include dev
+      run: python3 ./devscripts/install_deps.py --include test
     - name: Run tests
       run: |
         python3 -m yt_dlp -v || true
         python3 ./devscripts/run_tests.py core
-  flake8:
-    name: Linter
+  check:
+    name: Code check
     if: "!contains(github.event.head_commit.message, 'ci skip all')"
     runs-on: ubuntu-latest
     steps:
@@ -29,9 +29,11 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: '3.8'
-    - name: Install flake8
-      run: python3 ./devscripts/install_deps.py -o --include dev
+    - name: Install dev dependencies
+      run: python3 ./devscripts/install_deps.py -o --include static-analysis
     - name: Make lazy extractors
       run: python3 ./devscripts/make_lazy_extractors.py
-    - name: Run flake8
-      run: flake8 .
+    - name: Run ruff
+      run: ruff check --output-format github .
+    - name: Run autopep8
+      run: autopep8 --diff .