Add changesets for existing PRs, fix build install dependencies step (#539)

Author: ericglau

.changeset/add-account-contract.md

@@ -2,6 +2,6 @@
 '@openzeppelin/wizard': patch
 ---
 
-Add `account` contract types for ERC-4337. ([#486](https://github.com/OpenZeppelin/contracts-wizard/pull/486))
+Add `account` contract types for ERC-4337. ([#486](https://github.com/OpenZeppelin/contracts-wizard/pull/486), [#523](https://github.com/OpenZeppelin/contracts-wizard/pull/523), [#527](https://github.com/OpenZeppelin/contracts-wizard/pull/527))
 - **Potentially breaking changes**:
   - Update pragma versions to 0.8.27. ([#486](https://github.com/OpenZeppelin/contracts-wizard/pull/486))

.changeset/tame-feet-stick.md

@@ -0,0 +1,7 @@
+---
+'@openzeppelin/wizard': patch
+---
+
+Simplify Community Contracts imports. ([#537](https://github.com/OpenZeppelin/contracts-wizard/pull/537))
+- **Potentially breaking changes**:
+  - Changes import path format for `@openzeppelin/community-contracts`

.github/actions/setup/action.yml

@@ -9,5 +9,5 @@ runs:
         cache: yarn
 
     - name: Install dependencies
-      run: yarn --frozen-lockfile --prefer-offline
+      run: yarn --frozen-lockfile --prefer-offline --network-concurrency 1
       shell: bash