[PARQUET-1932] Bump Fastutil to 8.4.2 (#836)

diff --git a/pom.xml b/pom.xml
index a0d3e15..9822664 100644
--- a/pom.xml
+++ b/pom.xml
@@ -96,7 +96,7 @@
     <thrift-maven-plugin.version>0.10.0</thrift-maven-plugin.version>
     <thrift.version>0.13.0</thrift.version>
     <format.thrift.version>0.13.0</format.thrift.version>
-    <fastutil.version>8.2.3</fastutil.version>
+    <fastutil.version>8.4.2</fastutil.version>
     <semver.api.version>0.9.33</semver.api.version>
     <slf4j.version>1.7.22</slf4j.version>
     <avro.version>1.10.0</avro.version>