renovatebot(deps): update dependency net.shibboleth:shib-support to v9.1.5

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [net.shibboleth:shib-support](https://shibboleth.net/) | dependencies | patch | `9.1.4` -> `9.1.5` |

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Author: apereocas-bot

gradle/libs.versions.toml

@@ -195,7 +195,7 @@ scimSdkClient = "1.27.2"
 semver = "3.1.0"
 sendGrid = "4.10.3"
 sentry = "8.19.1"
-shibbolethUtilJavaSupport = "9.1.4"
+shibbolethUtilJavaSupport = "9.1.5"
 slackClient = "1.45.3"
 slf4j = "2.0.17"
 snakeYaml = "2.4"