Try installing npm 7 in CI workflows

.github/workflows/create-block.yml

@@ -33,5 +33,6 @@ jobs:
 
             - name: npm install, build, format and lint
               run: |
+                  npm install -g npm@latest
                   npm ci
                   npm run test:create-block

.github/workflows/end2end-test.yml

@@ -37,6 +37,7 @@ jobs:
 
             - name: Npm install and build
               run: |
+                  npm install -g npm@latest
                   npm ci
                   FORCE_REDUCED_MOTION=true npm run build
 

.github/workflows/performance.yml

@@ -31,6 +31,7 @@ jobs:
 
             - name: Npm install
               run: |
+                  npm install -g npm@latest
                   npm ci
 
             - name: Compare performance with trunk

.github/workflows/rnmobile-android-runner.yml

@@ -33,7 +33,9 @@ jobs:
                   node-version: ${{ matrix.node }}
                   cache: npm
 
-            - run: npm ci
+            - run: |
+                  npm install -g npm@latest
+                  npm ci
 
             - name: Restore Gradle cache
               uses: actions/cache@c64c572235d810460d0d6876e9c705ad5002b353 # v2.1.6

.github/workflows/rnmobile-ios-runner.yml

@@ -31,7 +31,9 @@ jobs:
                   node-version: ${{ matrix.node }}
                   cache: npm
 
-            - run: npm ci
+            - run: |
+                  npm install -g npm@latest
+                  npm ci
 
             - name: Prepare build cache key
               run: find package-lock.json packages/react-native-editor/ios packages/react-native-aztec/ios packages/react-native-bridge/ios -type f -print0 | sort -z | xargs -0 shasum | tee ios-checksums.txt

.github/workflows/static-checks.yml

@@ -35,7 +35,9 @@ jobs:
               # with an error status code if the lock file is inaccurate.
               #
               # See: https://github.com/WordPress/gutenberg/issues/16157
-              run: npm install
+              run: |
+                  npm install -g npm@latest
+                  npm install
 
             - name: Lint JavaScript and Styles
               run: npm run lint

.github/workflows/storybook-pages.yml

@@ -26,7 +26,9 @@ jobs:
                   cache: npm
 
             - name: Install Dependencies
-              run: npm ci
+              run: |
+                  npm install -g npm@latest
+                  npm ci
 
             - name: Build Storybook
               run: npm run storybook:build

.github/workflows/unit-test.yml

@@ -42,6 +42,7 @@ jobs:
               # source files with `babel-jest`. Some packages have their own custom
               # build tasks, however. These must be run.
               run: |
+                  npm install -g npm@latest
                   npm ci
                   npx lerna run build
 
@@ -67,6 +68,7 @@ jobs:
 
             - name: Npm install and build
               run: |
+                  npm install -g npm@latest
                   npm ci
                   npm run build
 
@@ -104,6 +106,7 @@ jobs:
               # source files with `babel-jest`. Some packages have their own custom
               # build tasks, however. These must be run.
               run: |
+                  npm install -g npm@latest
                   npm ci
                   npx lerna run build
 

packages/block-library/src/group/block.json

@@ -32,7 +32,9 @@
 			"style": true,
 			"width": true
 		},
-		"__experimentalLayout": true
+		"__experimentalLayout": {
+			"allowSwitching": true
+		}
 	},
 	"editorStyle": "wp-block-group-editor",
 	"style": "wp-block-group"