Excavator: Upgrades suppressible-error-prone to the latest version (#640)

Author: svc-excavator-bot

build.gradle

@@ -10,7 +10,7 @@ buildscript {
         classpath 'com.palantir.gradle.externalpublish:gradle-external-publish-plugin:1.19.0'
         classpath 'com.palantir.gradle.failure-reports:gradle-failure-reports:1.13.0'
         classpath 'com.palantir.javaformat:gradle-palantir-java-format:2.60.0'
-        classpath 'com.palantir.suppressible-error-prone:gradle-suppressible-error-prone:2.5.0'
+        classpath 'com.palantir.suppressible-error-prone:gradle-suppressible-error-prone:2.6.0'
         classpath 'com.palantir.gradle.consistentversions:gradle-consistent-versions:2.32.0'
         classpath 'com.palantir.baseline:gradle-baseline-java:6.16.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:3.1.0'