build(deps): bump no.nav.security:mock-oauth2-server from 2.1.2 to 2.1.5

Bumps [no.nav.security:mock-oauth2-server](https://github.com/navikt/mock-oauth2-server) from 2.1.2 to 2.1.5.
- [Release notes](https://github.com/navikt/mock-oauth2-server/releases)
- [Commits](navikt/mock-oauth2-server@2.1.2...2.1.5)

---
updated-dependencies:
- dependency-name: no.nav.security:mock-oauth2-server
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -61,7 +61,7 @@
         <ktor.version>2.3.10</ktor.version>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin.version>1.9.23</kotlin.version>
-        <mock-oauth2-server.version>2.1.2</mock-oauth2-server.version>
+        <mock-oauth2-server.version>2.1.5</mock-oauth2-server.version>
         <nimbus.jose.jwt.version>9.37.3</nimbus.jose.jwt.version>
         <kotest.version>5.8.1</kotest.version>
         <kotlin.compiler.jvmTarget>17</kotlin.compiler.jvmTarget>