ci(python-safety-dependencies-check): Remove hook

Trivy and Grype were added to MegaLinter in v6.0.0 and v7.2.0,
respectively. Both scan for security vulnerabilities in Poetry
dependencies. Hence, we no longer require a dedicated pre-commit hook
for this purpose.

.pre-commit-config.yaml

@@ -73,12 +73,6 @@ repos:
     hooks:
       - id: check-useless-excludes
 
-  ## Python
-  - repo: https://github.com/Lucas-C/pre-commit-hooks-safety
-    rev: v1.3.2
-    hooks:
-      - id: python-safety-dependencies-check
-
   ## Natural language
   - repo: https://github.com/PrincetonUniversity/blocklint
     rev: v0.2.4