Bump filelock from 3.17.0 to 3.20.1 in /requirements

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.17.0 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@3.17.0...3.20.1)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements/dev-requirements.txt

@@ -231,9 +231,9 @@ fastjsonschema==2.21.1 \
     --hash=sha256:794d4f0a58f848961ba16af7b9c85a3e88cd360df008c59aac6fc5ae9323b5d4 \
     --hash=sha256:c9e5b7e908310918cf494a434eeb31384dd84a98b57a30bcb1f535015b554667
     # via nbformat
-filelock==3.17.0 \
-    --hash=sha256:533dc2f7ba78dc2f0f531fc6c4940addf7b70a481e269a5a3b93be94ffbe8338 \
-    --hash=sha256:ee4e77401ef576ebb38cd7f13b9b28893194acc20a8e68e18730ba9c0e54660e
+filelock==3.20.1 \
+    --hash=sha256:15d9e9a67306188a44baa72f569d2bfd803076269365fdea0934385da4dc361a \
+    --hash=sha256:b8360948b351b80f420878d8516519a2204b07aefcdcfd24912a5d33127f188c
     # via virtualenv
 flexcache==0.3 \
     --hash=sha256:18743bd5a0621bfe2cf8d519e4c3bfdf57a269c15d1ced3fb4b64e0ff4600656 \