Bump nimbus-jose-jwt from 3.9 to 7.9 in /webapp

Bumps [nimbus-jose-jwt](https://bitbucket.org/connect2id/nimbus-jose-jwt) from 3.9 to 7.9.
- [Changelog](https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt)
- [Commits](https://bitbucket.org/connect2id/nimbus-jose-jwt/branches/compare/7.9..3.9)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/webapp/pom.xml b/webapp/pom.xml
old mode 100755
new mode 100644
index 465d2a5..03a103e
--- a/webapp/pom.xml
+++ b/webapp/pom.xml
@@ -451,7 +451,7 @@
         <dependency>
             <groupId>com.nimbusds</groupId>
             <artifactId>nimbus-jose-jwt</artifactId>
-            <version>3.9</version>
+            <version>7.9</version>
             <scope>compile</scope>
             <exclusions>
                 <exclusion>