ci: add paths command to skip unnecessary GitHub actions

Signed-off-by: Philip Molares <philip.molares@udo.edu>

.github/workflows/codeql-analysis.yml

@@ -18,9 +18,15 @@ name: "CodeQL"
 on:
   push:
     branches: [ develop ]
+    paths:
+      - 'src/'
+      - 'test/'
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ develop ]
+    paths:
+      - 'src/'
+      - 'test/'
   schedule:
     - cron: '15 4 * * 3'