Excavator: Upgrades Baseline to the latest version

.baseline/checkstyle/checkstyle.xml

@@ -18,10 +18,6 @@
     <module name="NewlineAtEndOfFile"> <!-- Java Style Guide: Line ending: LF -->
         <property name="lineSeparator" value="lf"/>
     </module>
-    <module name="RegexpHeader">
-        <property name="header" value="^/\*$\n^ \* \(c\) Copyright \d{4} Palantir Technologies Inc\. All rights reserved\.$"/>
-        <property name="fileExtensions" value=".java,.ts"/>
-    </module>
     <module name="RegexpMultiline"> <!-- Development Practices: Writing good unit tests -->
         <property name="fileExtensions" value="java"/>
         <property name="format" value="@VisibleForTesting\s+(protected|public)"/>

build.gradle

@@ -13,7 +13,7 @@ buildscript {
         classpath 'com.palantir.javaformat:gradle-palantir-java-format:0.3.15'
         classpath 'com.netflix.nebula:gradle-info-plugin:6.0.0'
         classpath 'com.netflix.nebula:nebula-publishing-plugin:17.0.0'
-        classpath 'com.palantir.baseline:gradle-baseline-java:3.3.0'
+        classpath 'com.palantir.baseline:gradle-baseline-java:3.4.2'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:0.12.2'
     }