Bump org.jetbrains.lets-plot:lets-plot-image-export from 4.4.0 to 4.5.1

Bumps [org.jetbrains.lets-plot:lets-plot-image-export](https://github.com/JetBrains/lets-plot) from 4.4.0 to 4.5.1.
- [Release notes](https://github.com/JetBrains/lets-plot/releases)
- [Changelog](https://github.com/JetBrains/lets-plot/blob/master/CHANGELOG.md)
- [Commits](JetBrains/lets-plot@v4.4.0...v4.5.1)

---
updated-dependencies:
- dependency-name: org.jetbrains.lets-plot:lets-plot-image-export
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ slf4j-simple = { group = "org.slf4j", name = "slf4j-simple", version = "2.0.13"}
 
 # Lets-Plot
 letsplot-kotlinjvm = { group = "org.jetbrains.lets-plot", name = "lets-plot-kotlin-jvm", version = "4.8.0" }
-letsplot-imageexport = { group = "org.jetbrains.lets-plot", name = "lets-plot-image-export", version = "4.4.0" }
+letsplot-imageexport = { group = "org.jetbrains.lets-plot", name = "lets-plot-image-export", version = "4.5.1" }
 
 # Tests
 kotlin-test = { group = "org.jetbrains.kotlin", name="kotlin-test" }