Bump pyyaml from 5.3.1 to 5.4

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.3.1 to 5.4.
- [Changelog](https://github.com/yaml/pyyaml/blob/main/CHANGES)
- [Commits](yaml/pyyaml@5.3.1...5.4)

---
updated-dependencies:
- dependency-name: pyyaml
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,4 +1,4 @@
 celery==5.3.6
-PyYAML==5.3.1
+PyYAML==5.4
 tinydb==4.8.0
 typing_extensions==4.0.1

setup.py

@@ -19,7 +19,7 @@
     scripts=["scripts/fikkie"],
     install_requires=[
         "celery==5.3.6",
-        "PyYAML==5.3.1",  # Issue: https://github.com/yaml/pyyaml/issues/724
+        "PyYAML==5.4",  # Issue: https://github.com/yaml/pyyaml/issues/724
         "tinydb==4.8.0",
         "typing_extensions==4.0.1",
     ],