[pre-commit] Exclude on purpose test bad file from some checks

- black
- debug-statements
- bandit

These files are explicitly wrong to test that the system is
working as expected when encountering such errors.

.pre-commit-config.yaml

@@ -6,12 +6,14 @@ repos:
     hooks:
     - id: black
       language_version: python3.6
+      exclude: beat/core/test/prefix/algorithms/user/syntax_error/1.py|beat/core/test/prefix/databases/invalid/1.py
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v2.0.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
       - id: debug-statements
+        exclude: beat/core/test/prefix/algorithms/user/syntax_error/1.py|beat/core/test/prefix/databases/invalid/1.py
       - id: check-added-large-files
       - id: check-docstring-first
       - id: flake8
@@ -21,7 +23,7 @@ repos:
     rev: 'master' # Update me!
     hooks:
       - id: bandit
-        exclude: beat/editor/test
+        exclude: beat/editor/test|beat/core/test/prefix/algorithms/user/syntax_error/1.py|beat/core/test/prefix/databases/invalid/1.py
   - repo: local
     hooks:
       - id: sphinx-build