Update logback to 1.3.16

Bio-Formats 8.4.0 uses logback 1.3.16, motivated by qos-ch/logback#974

Author: melissalinkert

pom.xml

@@ -2295,7 +2295,7 @@
 
 		<!-- Logback - https://logback.qos.ch/ -->
 		<!-- NB: 1.3.x is the last version with Java 8 support. -->
-		<logback.version>1.3.15</logback.version>
+		<logback.version>1.3.16</logback.version>
 		<logback-classic.version>${logback.version}</logback-classic.version>
 		<logback-core.version>${logback.version}</logback-core.version>
 		<ch.qos.logback.logback-classic.version>${logback-classic.version}</ch.qos.logback.logback-classic.version>