Update dependency com.guardsquare:proguard-gradle to v7.5.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.guardsquare:proguard-gradle (source)	7.4.1 -> 7.5.0

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Release Notes

Guardsquare/proguard (com.guardsquare:proguard-gradle)

### [`v7.5.0`](https://redirect.github.com/Guardsquare/proguard/compare/v7.4.2...v7.5) ### [`v7.4.2`](https://redirect.github.com/Guardsquare/proguard/releases/tag/v7.4.2): 7.4.2 ##### Bugfixes - Fix potential access issues when backporting. - Fix potential NoClassDefFoundError when using type specialization optimization. ([#​373](https://redirect.github.com/Guardsquare/proguard/issues/373)) - Improve processing of Kotlin metadata flags to prevent unnecessary null checks for consumers of protected library artifacts. - Prevent potential `StackGeneralizationException` during optimization when processing methods with many arguments. ##### Added - `ProGuardTask` support for Gradle configuration cache. ([#​254](https://redirect.github.com/Guardsquare/proguard/issues/254))

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Configuration

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