chore(deps): bump no.nav.pdfgen:pdfgen-core from 1.1.27 to 1.1.28

Bumps [no.nav.pdfgen:pdfgen-core](https://github.com/navikt/pdfgen-core) from 1.1.27 to 1.1.28.
- [Release notes](https://github.com/navikt/pdfgen-core/releases)
- [Changelog](https://github.com/navikt/pdfgen-core/blob/main/CHANGELOG.md)
- [Commits](navikt/pdfgen-core@1.1.27...1.1.28)

---
updated-dependencies:
- dependency-name: no.nav.pdfgen:pdfgen-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle.kts

@@ -18,7 +18,7 @@ val junitJupiterVersion = "5.11.1"
 val verapdfVersion = "1.26.1"
 val ktfmtVersion = "0.44"
 val testcontainersVersion= "1.20.1"
-val pdfgencoreVersion = "1.1.27"
+val pdfgencoreVersion = "1.1.28"
 val commonsCompressVersion = "1.27.1"
 
 val javaVersion = JvmTarget.JVM_21