Bump dusseldorf-ktor.version from 4.0.10 to 4.2.1 (#1094)

Bumps `dusseldorf-ktor.version` from 4.0.10 to 4.2.1.

Updates `no.nav.helse:dusseldorf-oauth2-client` from 4.0.10 to 4.2.1
- [Release notes](https://github.com/navikt/dusseldorf-ktor/releases)
- [Commits](navikt/dusseldorf-ktor@4.0.10...4.2.1)

Updates `no.nav.helse:dusseldorf-test-support` from 4.0.10 to 4.2.1
- [Release notes](https://github.com/navikt/dusseldorf-ktor/releases)
- [Commits](navikt/dusseldorf-ktor@4.0.10...4.2.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -64,7 +64,7 @@
         <fuel.version>2.3.1</fuel.version>
         <kotlinx-coroutines.version>1.8.0</kotlinx-coroutines.version>
         <token-support.version>4.0.5</token-support.version>
-        <dusseldorf-ktor.version>4.0.10</dusseldorf-ktor.version>
+        <dusseldorf-ktor.version>4.2.1</dusseldorf-ktor.version>
         <de.huxhorn.sulky.ulid.version>8.3.0</de.huxhorn.sulky.ulid.version>
     </properties>