Fix Snyk Open Source check failing (#8642)

Signed-off-by: Steven Sheehy <[email protected]>

buildSrc/src/main/kotlin/java-conventions.gradle.kts

@@ -26,6 +26,7 @@ plugins {
 }
 
 configurations.all {
+    exclude(group = "com.github.jnr") // Unused and has licensing issues
     exclude(group = "commons-logging", "commons-logging")
     exclude(group = "org.slf4j", module = "slf4j-nop")
 }