update pre-commit

.pre-commit-config.yaml

@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: ''
+    rev: 'v3.4.0'
     hooks:
       - id: check-merge-conflict 
       - id: debug-statements 
@@ -30,7 +30,7 @@ repos:
       types: [ python ]
 
 -   repo: https://github.com/pre-commit/pygrep-hooks
-    rev: ''
+    rev: 'v1.8.0'
     hooks:
       - id: python-no-eval 
       - id: python-no-log-warn 
@@ -40,7 +40,7 @@ repos:
 # mypy - static type checking
 # mypy --follow-imports skip <file>
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: ''
+    rev: 'v0.812'
     hooks:
       - id: mypy
         args: [ "--follow-imports", "skip", "--ignore-missing-imports", "--scripts-are-modules" ]
@@ -59,7 +59,7 @@ repos:
 
 # safety.exe check -r requirements.txt
 -   repo: https://github.com/Lucas-C/pre-commit-hooks-safety
-    rev: ''
+    rev: 'v1.2.1'
     hooks:
       - id: python-safety-dependencies-check 
         entry: safety