chore(ci): Skip backend system tests when updating Android modules

[0xadam-brown]

📜 Description

Android-only PRs were silently triggering 24 unrelated backend system test jobs (up to 10 min each) on every push and PR. This PR lets us skip those jobs when we don't need them.

Quantifying the win

💡 Motivation and Context

Follow-up to #5453, which fixed the same issue for the Spring Boot matrix workflows.

addresses: JAVA-519

💚 How did you test it?

CI configuration only — no code behaviour changed. Verified glob semantics: *android*/** is anchored to the repo root and matches any top-level directory whose name contains "android".

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

#skip-changelog

[sentry]

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
SDK Size	io.sentry.tests.size	8.42.0 (1)	release

⚙️ sentry-android Build Distribution Settings

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	323.29 ms	371.34 ms	48.05 ms
Size	0 B	0 B	0 B

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3d205d0	352.15 ms	432.53 ms	80.38 ms
27d7cf8	369.82 ms	422.62 ms	52.80 ms
33a08cc	267.08 ms	340.45 ms	73.37 ms
b750b96	408.98 ms	480.32 ms	71.34 ms
96eeafa	361.43 ms	455.07 ms	93.63 ms
22f4345	314.79 ms	375.02 ms	60.23 ms
8c1fb22	316.62 ms	352.78 ms	36.16 ms
cf708bd	434.73 ms	502.96 ms	68.22 ms
48277cd	320.38 ms	379.90 ms	59.52 ms
22f4345	307.87 ms	354.51 ms	46.64 ms

App size

Revision	Plain	With Sentry	Diff
3d205d0	1.58 MiB	2.10 MiB	532.97 KiB
27d7cf8	1.58 MiB	2.12 MiB	549.42 KiB
33a08cc	1.58 MiB	2.12 MiB	555.28 KiB
b750b96	1.58 MiB	2.10 MiB	533.19 KiB
96eeafa	1.58 MiB	2.19 MiB	620.21 KiB
22f4345	1.58 MiB	2.29 MiB	719.83 KiB
8c1fb22	0 B	0 B	0 B
cf708bd	1.58 MiB	2.11 MiB	539.71 KiB
48277cd	0 B	0 B	0 B
22f4345	1.58 MiB	2.29 MiB	719.83 KiB