Use encoding: false when copying files using gulp.

CHANGES.md

@@ -7,6 +7,7 @@
 - Remove unused class-list dependency.
 - TSify `ConsoleAnalytics` module.
 - Update to gulp 5.0 to fix security vulnerabilities.
+  - Gulp 5 defaults to encoding copied files as utf-8, had turn off encoding by setting `encoding: false` to correctly copy binary assets from dependencies.
 - Update to dompurify 2.5.7 to fix security vulnerabilities.
 - Remove unused simple-statistics dependency.
 - Update to pretty-quick 4.0.0 to fix security vulnerabilities.

gulpfile.js

@@ -81,7 +81,8 @@ gulp.task("copy-cesium-workers", function () {
 
   return gulp
     .src([path.join(cesiumWorkersRoot, "**")], {
-      base: cesiumWorkersRoot
+      base: cesiumWorkersRoot,
+      encoding: false
     })
     .pipe(gulp.dest("wwwroot/build/Cesium/build/Workers"));
 });
@@ -95,7 +96,8 @@ gulp.task("copy-cesium-thirdparty", function () {
 
   return gulp
     .src([path.join(cesiumThirdPartyRoot, "**")], {
-      base: cesiumThirdPartyRoot
+      base: cesiumThirdPartyRoot,
+      encoding: false
     })
     .pipe(gulp.dest("wwwroot/build/Cesium/build/ThirdParty"));
 });
@@ -109,7 +111,8 @@ gulp.task("copy-cesium-source-assets", function () {
 
   return gulp
     .src([path.join(cesiumAssetsRoot, "**")], {
-      base: cesiumAssetsRoot
+      base: cesiumAssetsRoot,
+      encoding: false
     })
     .pipe(gulp.dest("wwwroot/build/Cesium/build/Assets"));
 });