chore: bump lintVersion from 30.1.3 to 30.3.0

Bumps `lintVersion` from 30.1.3 to 30.3.0.

Updates `lint-api` from 30.1.3 to 30.3.0

Updates `lint-checks` from 30.1.3 to 30.3.0

Updates `lint` from 30.1.3 to 30.3.0

Updates `lint-tests` from 30.1.3 to 30.3.0

Updates `testutils` from 30.1.3 to 30.3.0

---
updated-dependencies:
- dependency-name: com.android.tools.lint:lint-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.android.tools.lint:lint-checks
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.android.tools.lint:lint
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.android.tools.lint:lint-tests
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.android.tools:testutils
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

tooling/custom-lint-rules/build.gradle

@@ -9,7 +9,7 @@ targetCompatibility = 1.8
 
 buildscript {
     ext {
-        lintVersion = '30.1.3'
+        lintVersion = '30.3.0'
     }
     repositories {
         mavenCentral()