fix: exclude EJS templates from CodeQL extractor via LGTM_INDEX_FILTERS

Author: EugeniyKiyashko

.github/workflows/codeql-analysis.yml

@@ -46,6 +46,9 @@ jobs:
         config: |
           paths-ignore:
             - packages/devextreme-cli/src/templates
+      env:
+        LGTM_INDEX_FILTERS: |
+          exclude:packages/devextreme-cli/src/templates
         # If you wish to specify custom queries, you can do so here or in a config file.
         # By default, queries listed here will override any specified in a config file.
         # Prefix the list here with "+" to use these queries and those in the config file.