chore: Provide rule for automatic rebasing against upstream

Signed-off-by: Roman Nikitenko <rnikiten@redhat.com>

Author: RomanNikitenko

.rebase/replace/code/src/vs/platform/extensionManagement/common/abstractExtensionManagementService.ts.json

@@ -0,0 +1,6 @@
+[
+    {
+        "from": "this.preferPreReleases = this.productService.quality !== 'stable';",
+        "by": "this.preferPreReleases = false;"
+    }
+]

rebase.sh

@@ -482,6 +482,8 @@ resolve_conflicts() {
       apply_changes "$conflictingFile"
     elif [[ "$conflictingFile" == "code/src/vs/platform/extensionManagement/node/extensionManagementService.ts" ]]; then
       apply_changes "$conflictingFile"
+    elif [[ "$conflictingFile" == "code/src/vs/platform/extensionManagement/common/abstractExtensionManagementService.ts" ]]; then
+      apply_changes "$conflictingFile"
     elif [[ "$conflictingFile" == "code/src/vs/workbench/contrib/chat/browser/actions/chatActions.ts" ]]; then
       apply_multi_line_replace "$conflictingFile"
     else