deps: update to threetenbp 1.4.0 (#89)

Author: elharo

pom.xml

@@ -168,7 +168,7 @@
     <truth.version>1.0</truth.version>
     <easymock.version>3.6</easymock.version>
     <findbugs.version>3.0.2</findbugs.version>
-    <threetenbp.version>1.3.3</threetenbp.version>
+    <threetenbp.version>1.4.0</threetenbp.version>
     <objenesis.version>2.6</objenesis.version>
     <errorprone.version>2.3.3</errorprone.version>
     <gson.version>2.8.6</gson.version>