ci: move semgrep rules out of repo (backport #28067)

* ci: move semgrep rules out of repo (#28067)

Moving semgrep rules out of repos as it's unnecessary to maintain
same ruleset for different repos and different branches.

(cherry picked from commit cc1baae)

# Conflicts:
#	.github/helper/semgrep_rules/frappe_correctness.py
#	.github/helper/semgrep_rules/frappe_correctness.yml
#	.github/helper/semgrep_rules/report.py
#	.github/helper/semgrep_rules/ux.py
#	.github/workflows/linters.yml

* fix: resolve conflicts

Co-authored-by: Ankush Menat <ankush@frappe.io>

.github/workflows/linters.yml

@@ -10,18 +10,22 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: returntocorp/semgrep-action@v1
-        env:
-            SEMGREP_TIMEOUT: 120
-        with:
-            config: >-
-              r/python.lang.correctness
-              .github/helper/semgrep_rules
 
       - name: Set up Python 3.8
         uses: actions/setup-python@v2
         with:
           python-version: 3.8
 
       - name: Install and Run Pre-commit
-        uses: pre-commit/action@v2.0.0
+        uses: pre-commit/action@v2.0.3
+
+      - name: Download Semgrep rules
+        run: git clone --depth 1 https://github.com/frappe/frappe-semgrep-rules.git
+
+      - uses: returntocorp/semgrep-action@v1
+        env:
+            SEMGREP_TIMEOUT: 120
+        with:
+            config: >-
+              r/python.lang.correctness
+              ./frappe-semgrep-rules/rules