chore: bump com.guardsquare:proguard-gradle from 7.3.0 to 7.9.1

[dependabot]

Bumps com.guardsquare:proguard-gradle from 7.3.0 to 7.9.1.

Release notes

Sourced from com.guardsquare:proguard-gradle's releases.

7.9.1

Bugfixes

• Fix regression in Kotlin metadata shrinking (#527).

7.9

Kotlin support

• Add support for Kotlin 2.3.

Java support

• Add support for Java 26.

v7.8.2

Bugfixes

• Fix regression in marking of interface constants (#508).

v7.8.1

Bugfixes

• Prevent java.lang.IncompatibleClassChangeError when shrinking is enabled and sealed interfaces are used (#501).
• Prevent java.lang.ClassCastException when inlining (#505).

v7.8

Kotlin support

• Add support for Kotlin 2.2.

Java support

• Add support for Java 25. (#481)

v7.7

Java support

• Add support for Java 24. (#458)

Bugfixes

• Prevent IllegalArgumentException when strings longer than 65535 bytes are present in the application (#267).
• Prevent StackOverflowException when processing a pattern match switch (#444).

Improved

• Improve processing time in apps where a large number of linked methods are present.

... (truncated)

Commits

• b464127 Prepare 7.9.1
• 11e552e Fix KotlinShrinker and add tests
• dd28444 Update version. clean outdated comment
• 7528722 Reapply "Migrate to Shadow 9" (#525)
• d6b0ba7 Upgrade pgcore and prepare release for java 26 support (#524)
• 51061ec Revert "Migrate to Shadow 9 (#497)" (#523)
• 30492a3 Migrate to Shadow 9 (#497)
• db91344 Upgrade kotest, use java 11 for building everything
• 9243e6d Introduce version catalog
• 23f5c1c Use Locale.ROOT in lower/upper case.
• Additional commits viewable in compare view

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[cursor]

PR Summary

Low Risk
Single classpath version change for a build-time ProGuard step in tooling; no runtime app or auth logic changes.

Overview
Updates the ProGuard Gradle plugin dependency in tooling/custom-lint-rules from 7.3.0 to 7.9.1, so the custom lint module’s proguardCore shrink step uses the newer Guardsquare toolchain (Kotlin/Java support and bugfix releases in between).

^{Reviewed by Cursor Bugbot for commit 06a3a56. Bugbot is set up for automated code reviews on this repo. Configure here.}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud