docs: add Ivy and View Engine test scripts (angular#38149)

Developer docs previously stated to use `yarn bazel test //packages/...` which attempts to test all packages with View
Engine (the default), even though not all support View Engine. This updates the doc to use `yarn test-ivy-aot` and
`yarn test-non-ivy` which tests both Ivy and View Engine while filtering out tests which are not compatible with each
renderer.

PR Close angular#38149

Author: dgp1130

docs/DEVELOPER.md

@@ -80,8 +80,10 @@ Bazel is used as the primary tool for building and testing Angular. Building and
 incremental with Bazel, and it's possible to only run tests for an individual package instead
 of for all packages. Read more about this in the [BAZEL.md](./BAZEL.md) document.
 
-You should execute all test suites before submitting a PR to GitHub:
-- `yarn bazel test packages/...`
+You should execute all test suites before submitting a PR to GitHub. Note that not all tests
+support both Ivy and View Engine, so they need to be run separately:
+- `yarn test-ivy-aot //packages/...`
+- `yarn test-non-ivy //packages/...`
 
 **Note**: The first test run will be much slower than future runs. This is because future runs will
 benefit from Bazel's capability to do incremental builds.