build(deps): bump actions/download-artifact from 3.0.2 to 4.1.6

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3.0.2 to 4.1.6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@9bc31d5...9c19ed7)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/main.yml

@@ -437,25 +437,25 @@ jobs:
               uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
 
             - name: Download coverage report for auth0_flutter
-              uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
+              uses: actions/download-artifact@9c19ed7fe5d278cd354c7dfd5d3b88589c7e2395
               with:
                 name: auth0_flutter coverage
                 path: coverage/auth0_flutter
 
             - name: Download coverage report for auth0_flutter_platform_interface
-              uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
+              uses: actions/download-artifact@9c19ed7fe5d278cd354c7dfd5d3b88589c7e2395
               with:
                 name: auth0_flutter_platform_interface coverage
                 path: coverage/auth0_flutter_platform_interface
 
             - name: Download coverage report for iOS
-              uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
+              uses: actions/download-artifact@9c19ed7fe5d278cd354c7dfd5d3b88589c7e2395
               with:
                 name: iOS coverage
                 path: coverage/ios
 
             - name: Download coverage report for Android
-              uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a
+              uses: actions/download-artifact@9c19ed7fe5d278cd354c7dfd5d3b88589c7e2395
               with:
                 name: Android coverage
                 path: coverage/android