build: update yarn to use --immutable

Signed-off-by: Tierney Cyren <hello@bnb.im>

Author: bnb

.github/workflows/release.yml

@@ -27,7 +27,7 @@ jobs:
           node-version: 20.x
           cache: 'yarn'
       - name: Install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
       - uses: continuousauth/action@4e8a2573eeb706f6d7300d6a9f3ca6322740b72d # v1.0.5
         timeout-minutes: 60
         with:

.github/workflows/test.yml

@@ -33,7 +33,7 @@ jobs:
           node-version: "${{ matrix.node-version }}"
           cache: 'yarn'
       - name: Install
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
       - name: Prettier
         run: yarn prettier:check
       - name: Build