Excavator: Upgrades Baseline to the latest version

[svc-excavator-bot]

excavator is a bot for automating changes across repositories.

Changes produced by the roomba/latest-baseline-oss check.

Release Notes

2.5.0

Type	Description	Link
Improvement	Error Prone StringBuilderConstantParameters. StringBuilder with a constant number of parameters should be replaced by simple concatenation. The Java compiler (jdk8) replaces concatenation of a constant number of arguments with a StringBuilder, while jdk 9+ take advantage of JEP 280 (https://openjdk.java.net/jeps/280) to efficiently pre-size the result for better performance than a StringBuilder.	palantir/gradle-baseline#832

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