Fix vulnerable dependencies, update supportability, and remove Rush

.gitattributes

@@ -2,11 +2,6 @@
 # Set default behavior to automatically normalize line endings.
 ###############################################################################
 * text=auto
-# Don't allow people to merge changes to these generated files, because the result
-# may be invalid.  You need to run "rush update" again.
-shrinkwrap.yaml              merge=binary
-npm-shrinkwrap.json          merge=binary
-yarn.lock                    merge=binary
 
 *.ts linguist-detectable=true
 *.js linguist-detectable=false

.github/workflows/ci.yml

@@ -16,21 +16,15 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [ 18.x, 20.x ]
+        node-version: [ 20.x, 22.x ]
 
     steps:
     - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
-    - name: Update rush shrinkwrap dependencies (for different node versions)
-      run: node common/scripts/install-run-rush.js update --full --recheck
-    - run: npm install rollup -g
-    - run: npm install grunt-cli
     - run: npm install
-    - run: node common/scripts/install-run-rush.js check
-    - run: node common/scripts/install-run-rush.js update --full --recheck
     - run: npm run build --verbose
       timeout-minutes: 10
     - run: npm run test --verbose

.gitignore

@@ -51,12 +51,6 @@ rollup/types/
 # Output of 'npm pack'
 *.tgz
 
-
-# Rush files
-common/temp/**
-**/.rush/temp/**
-package-deps.json
 package-lock.json
 
-# test output
-**/.rush/temp/**
+# test output

CONTRIBUTING.md

@@ -26,20 +26,16 @@ We strongly welcome and encourage contributions to this project. If making a lar
 
     ```sh
     npm install
-    npm install -g @microsoft/rush
     ```
 
-3. Navigate to the root folder and update rush dependencies
+3. Build and create docs
 
     ```sh
-    rush update --recheck --full
+    npm run build
     ```
 
-4. Build, lint, create docs and run tests
+4. Run tests
 
     ```sh
-    rush build
     npm run test
     ```
-
-If you are changing package versions or adding/removing any package dependencies, run<br>**```rush update --purge --recheck --full```**<br>before building. Please check-in any files that change under common\ folder.

README.md

@@ -67,24 +67,20 @@ class ExampleClass extends BaseClass {
 
     ```sh
     npm install
-    npm install -g @microsoft/rush
     ```
 
-2. Navigate to the root folder and update rush dependencies
+2. Build and create docs
 
     ```sh
-    rush update
+    npm run build
     ```
 
-3. Build, lint, create docs and run tests
+3. Run tests
 
     ```sh
-    rush build
     npm run test
     ```
 
-If you are changing package versions or adding/removing any package dependencies, run<br>**```rush update --purge --recheck --full```**<br>before building. Please check-in any files that change under common\ folder.
-
 ## Performance
 
 The minified version of this adds a negligible amount of code and loadtime to your source code and by using this library, your generated code can be better minified as it removes most references of Classname.prototype.XXX methods from the generated code.