Cherry-pick 55303a4. rdar://123128300

    Update declarative filtering configuration to exclude skia sources
    rdar://123128300

    Reviewed by Alex Christensen.

    * .submitproject: Exclude Source/ThirdParty/skia
    Canonical link: https://commits.webkit.org/274905@main

Canonical link: https://commits.webkit.org/274594.5@safari-7619.1.4-branch

.submitproject

@@ -3,3 +3,4 @@
     includedSubdirectoryPatterns = Source/
     excludedSubdirectoryPatterns = Source/ThirdParty/libwebrtc/Source/third_party/boringssl/src/util
     excludedSubdirectoryPatterns = Source/ThirdParty/libwebrtc/Source/webrtc/examples
+    excludedSubdirectoryPatterns = Source/ThirdParty/skia