Bump actions/download-artifact from 2 to 3

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v3)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
           node-version: 14.x
       - uses: actions/checkout@v2
       - run: SKIP_GENAPI=1 npm ci
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: apis
           path: ./src/lib/apis/generated
@@ -57,7 +57,7 @@ jobs:
           node-version: 14.x
       - uses: actions/checkout@v2
       - run: SKIP_GENAPI=1 npm ci
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: apis
           path: ./src/lib/apis/generated
@@ -72,7 +72,7 @@ jobs:
           node-version: 14.x
       - uses: actions/checkout@v2
       - run: SKIP_GENAPI=1 npm ci
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: apis
           path: ./src/lib/apis/generated