Update dependency com.android.tools.build:gradle to v9.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.android.tools.build:gradle (source)	9.2.1 → 9.3.0

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: library/build.gradle

Command failed: ./gradlew -Dorg.gradle.jvmargs=-Xms512m -Xmx512m --console=plain --dependency-verification lenient -q --write-verification-metadata sha256,pgp dependencies

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* Where:
Build file '/tmp/renovate/repos/github/nextcloud/android-library/sample_client/build.gradle' line: 22

* What went wrong:
A problem occurred evaluating project ':sample_client'.
> Failed to apply plugin 'com.android.internal.version-check'.
   > Using different versions of the Android Gradle plugin (9.3.0, 9.2.1) in the same build is not allowed.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

2: Task failed with an exception.
-----------
* Where:
Build file '/tmp/renovate/repos/github/nextcloud/android-library/sample_client/build.gradle' line: 22

* What went wrong:
A problem occurred evaluating project ':sample_client'.
> Failed to apply plugin 'com.android.internal.version-check'.
   > Using different versions of the Android Gradle plugin (9.3.0, 9.2.1) in the same build is not allowed.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

BUILD FAILED in 2m 47s

[github-actions]

SpotBugs

Category	Base	New
Bad practice	31	31
Correctness	28	28
Dodgy code	14	14
Internationalization	6	6
Malicious code vulnerability	26	26
Multithreaded correctness	7	7
Performance	7	7
Security	4	4
Total	123	123

[github-actions]

SpotBugs

Category	Base	New
Bad practice	31	31
Correctness	28	28
Dodgy code	14	14
Internationalization	6	6
Malicious code vulnerability	26	26
Multithreaded correctness	7	7
Performance	7	7
Security	4	4
Total	123	123