Bump filelock from 3.16.1 to 3.20.1 in /requirements

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.16.1 to 3.20.1.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.16.1...3.20.1)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/dev.txt

@@ -5,45 +5,160 @@
 #
 #    pip-compile-multi
 #
--r docs.txt
--r style.txt
--r tests.txt
+alabaster==0.7.13
+    # via sphinx
+babel==2.17.0
+    # via sphinx
+beautifulsoup4==4.13.4
+    # via -r tests.in
+blinker==1.8.2
+    # via flask
 build==1.2.2.post1
     # via pip-tools
 cachetools==5.5.2
     # via tox
+certifi==2025.1.31
+    # via requests
 chardet==5.2.0
     # via tox
+charset-normalizer==3.4.1
+    # via requests
+click==8.1.8
+    # via
+    #   flask
+    #   pip-compile-multi
+    #   pip-tools
 colorama==0.4.6
     # via tox
+coverage[toml]==7.6.1
+    # via pytest-cov
 distlib==0.3.9
     # via virtualenv
-filelock==3.16.1
+docutils==0.20.1
+    # via sphinx
+filelock==3.20.1
     # via
     #   tox
     #   virtualenv
+flake8==7.1.2
+    # via -r style.in
+flask==3.0.3
+    # via
+    #   flask-sqlalchemy
+    #   flask-wtf
+flask-sqlalchemy==3.1.1
+    # via -r tests.in
+flask-wtf==1.2.1
+    # via -r tests.in
+idna==3.10
+    # via requests
+imagesize==1.4.1
+    # via sphinx
+iniconfig==2.0.0
+    # via pytest
+itsdangerous==2.2.0
+    # via
+    #   flask
+    #   flask-wtf
+jinja2==3.1.6
+    # via
+    #   flask
+    #   sphinx
+markupsafe==2.1.5
+    # via
+    #   jinja2
+    #   werkzeug
+    #   wtforms
+mccabe==0.7.0
+    # via flake8
+packaging==24.2
+    # via
+    #   build
+    #   pallets-sphinx-themes
+    #   pyproject-api
+    #   pytest
+    #   sphinx
+    #   tox
+pallets-sphinx-themes==2.3.0
+    # via -r docs.in
 pip-compile-multi==2.6.4
-    # via -r requirements/dev.in
+    # via -r dev.in
 pip-tools==7.4.1
     # via pip-compile-multi
 platformdirs==4.3.6
     # via
     #   tox
     #   virtualenv
+pluggy==1.5.0
+    # via
+    #   pytest
+    #   tox
+pycodestyle==2.12.1
+    # via flake8
+pyflakes==3.2.0
+    # via flake8
+pygments==2.19.1
+    # via sphinx
 pyproject-api==1.8.0
     # via tox
 pyproject-hooks==1.2.0
     # via
     #   build
     #   pip-tools
+pytest==8.3.5
+    # via
+    #   -r tests.in
+    #   pytest-cov
+pytest-cov==5.0.0
+    # via -r tests.in
+requests==2.32.3
+    # via sphinx
+snowballstemmer==2.2.0
+    # via sphinx
+soupsieve==2.7
+    # via beautifulsoup4
+sphinx==7.1.2
+    # via
+    #   -r docs.in
+    #   pallets-sphinx-themes
+    #   sphinx-notfound-page
+    #   sphinxcontrib-log-cabinet
+sphinx-notfound-page==1.1.0
+    # via pallets-sphinx-themes
+sphinxcontrib-applehelp==1.0.4
+    # via sphinx
+sphinxcontrib-devhelp==1.0.2
+    # via sphinx
+sphinxcontrib-htmlhelp==2.0.1
+    # via sphinx
+sphinxcontrib-jsmath==1.0.1
+    # via sphinx
+sphinxcontrib-log-cabinet==1.0.1
+    # via -r docs.in
+sphinxcontrib-qthelp==1.0.3
+    # via sphinx
+sphinxcontrib-serializinghtml==1.1.5
+    # via sphinx
+sqlalchemy==2.0.38
+    # via flask-sqlalchemy
 toposort==1.10
     # via pip-compile-multi
 tox==4.24.2
-    # via -r requirements/dev.in
+    # via -r dev.in
+typing-extensions==4.12.2
+    # via
+    #   beautifulsoup4
+    #   sqlalchemy
+urllib3==2.2.3
+    # via requests
 virtualenv==20.29.3
     # via tox
+werkzeug==3.0.6
+    # via flask
 wheel==0.45.1
     # via pip-tools
+wtforms==3.1.2
+    # via flask-wtf
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip