Excavator: Upgrade dependencies

versions.props

@@ -1,11 +1,11 @@
-com.diffplug.spotless:spotless-plugin-gradle = 3.26.0
+com.diffplug.spotless:spotless-plugin-gradle = 3.26.1
 com.google.auto.service:auto-service = 1.0-rc4
-com.google.errorprone:error_prone_annotations = 2.3.3
-com.google.errorprone:error_prone_core = 2.3.3
+com.google.errorprone:error_prone_annotations = 2.3.4
+com.google.errorprone:error_prone_core = 2.3.4
 com.google.errorprone:error_prone_refaster = 2.3.3
 com.google.errorprone:error_prone_test_helpers = 2.3.3
 com.google.guava:guava = 27.1-jre
-com.netflix.nebula:nebula-dependency-recommender = 9.0.0
+com.netflix.nebula:nebula-dependency-recommender = 9.0.1
 com.palantir.configurationresolver:gradle-configuration-resolver-plugin = 0.4.0
 com.palantir.javaformat:* = 0.3.3
 com.palantir.safe-logging:* = 1.12.0
@@ -25,7 +25,7 @@ commons-lang:commons-lang = 2.6
 org.assertj:assertj-core = 3.14.0
 org.hamcrest:hamcrest-core = 2.2
 org.junit.jupiter:* = 5.5.2
-org.mockito:mockito-core = 3.1.0
+org.mockito:mockito-core = 3.2.0
 com.fasterxml.jackson.*:* = 2.10.1
 com.palantir.tokens:auth-tokens = 3.6.1