Exclude core-unittests from Android workflow triggers (#4037)

Author: shai-almog

.github/workflows/scripts-android.yml

@@ -20,6 +20,7 @@ name: Test Android build scripts
       - 'Ports/Android/**'
       - '!Ports/Android/**/*.md'
       - 'maven/**'
+      - '!maven/core-unittests/**'
       - 'tests/**'
       - '!tests/**/*.md'
       - '!docs/**'
@@ -43,6 +44,7 @@ name: Test Android build scripts
       - 'Ports/Android/**'
       - '!Ports/Android/**/*.md'
       - 'maven/**'
+      - '!maven/core-unittests/**'
       - 'tests/**'
       - '!tests/**/*.md'
       - '!docs/**'