Merge pull request #27937 from spevans/pr_icu_65_1

ICU: Update to version 65.1 on Linux

Author: shahmishal

utils/update_checkout/update-checkout-config.json

@@ -61,7 +61,7 @@
                 "swift-integration-tests": "master",
                 "swift-xcode-playground-support": "master",
                 "ninja": "release",
-                "icu": "release-61-1",
+                "icu": "release-65-1",
                 "cmake": "v3.15.1",
                 "indexstore-db": "master",
                 "sourcekit-lsp": "master",
@@ -86,7 +86,7 @@
                 "swift-integration-tests": "master",
                 "swift-xcode-playground-support": "master",
                 "ninja": "release",
-                "icu": "release-61-1",
+                "icu": "release-65-1",
                 "cmake": "v3.15.1",
                 "indexstore-db": "master",
                 "sourcekit-lsp": "master",