Bump dusseldorf-ktor.version from 5.0.14 to 5.0.15

Bumps `dusseldorf-ktor.version` from 5.0.14 to 5.0.15.

Updates `no.nav.helse:dusseldorf-oauth2-client` from 5.0.14 to 5.0.15
- [Release notes](https://github.com/navikt/dusseldorf-ktor/releases)
- [Commits](navikt/dusseldorf-ktor@5.0.14...5.0.15)

Updates `no.nav.helse:dusseldorf-test-support` from 5.0.14 to 5.0.15
- [Release notes](https://github.com/navikt/dusseldorf-ktor/releases)
- [Commits](navikt/dusseldorf-ktor@5.0.14...5.0.15)

---
updated-dependencies:
- dependency-name: no.nav.helse:dusseldorf-oauth2-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: no.nav.helse:dusseldorf-test-support
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -63,7 +63,7 @@
         <fuel.version>2.3.1</fuel.version>
         <kotlinx-coroutines.version>1.9.0</kotlinx-coroutines.version>
         <token-support.version>5.0.13</token-support.version>
-        <dusseldorf-ktor.version>5.0.14</dusseldorf-ktor.version>
+        <dusseldorf-ktor.version>5.0.15</dusseldorf-ktor.version>
         <de.huxhorn.sulky.ulid.version>8.3.0</de.huxhorn.sulky.ulid.version>
     </properties>