Related to#149836

Last of the non api 35 references in flutter/flutter for targetSdk and compileSdk.
find . -type f -name "build.gradle" | xargs grep -e "targetSdk" | tr -d '=' | tr -s ' ' | grep -v flutter\.targetSdkVersion | grep -v engine/src/flutter/third_party/ | grep -v "targetSdk 35"
find . -type f -name "build.gradle" | xargs grep -e "compileSdk" | tr -d '=' | tr -s ' ' | grep -v flutter\.compileSdkVersion | grep -v engine/src/flutter/third_party/ | grep -v "compileSdk 35"

rewrite of#163622 after this test was updated to run against a newer version of gradle and agp inhttps://github.com/flutter/flutter/pull/163849/files#diff-83b6ad7c016bffbb682664eb65c576a7ebf9c312fc60727c0e0e20f5641cbc2aR462

Android-API-And-Related-Versions.md was updated to reflect that after further investigation that android is using "=" in their documentation and that the space syntax is discouraged. Equals is setting a property and space is the equivalent to a function call likecompileSdk(35) and assignment is prefered.

The use of equals for proprty assignment also aligns withhttps://docs.gradle.org/current/userguide/migrating_from_groovy_to_kotlin_dsl.html#prepare_your_groovy_scripts

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