Bump org.jetbrains.lets-plot:lets-plot-image-export from 4.4.0 to 4.5.1 #819

Job	Run time
Check for modified Gradle	4s
Compile Kotlin code	1m 18s
Trigger reproduction check	3s
Discover Gradle Projects	54s
Generate Detekt report (stars-core)	1m 8s
Generate Detekt report (stars-data-av)	1m 4s
Run JUnit tests (stars-core on ubuntu-latest)	1m 21s
Generate Detekt report (stars-importer-carla)	1m 3s
Run Spotless (stars-core)	56s
Run JUnit tests (stars-core on macos-latest)	1m 29s
Generate Detekt report (stars-logic-kcmftbl)	1m 21s
Run Spotless (stars-data-av)	1m 0s
Run JUnit tests (stars-core on windows-latest)	2m 10s
Run Spotless (stars-importer-carla)	52s
Run JUnit tests (stars-data-av on ubuntu-latest)	1m 20s
Run Spotless (stars-logic-kcmftbl)	56s
Run JUnit tests (stars-data-av on macos-latest)	1m 15s
Run JUnit tests (stars-data-av on windows-latest)	2m 24s
Run JUnit tests (stars-importer-carla on ubuntu-latest)	1m 17s
Run JUnit tests (stars-importer-carla on macos-latest)	1m 18s
Run JUnit tests (stars-importer-carla on windows-latest)	2m 24s
Run JUnit tests (stars-logic-kcmftbl on ubuntu-latest)	1m 21s
Run JUnit tests (stars-logic-kcmftbl on macos-latest)	1m 36s
Run JUnit tests (stars-logic-kcmftbl on windows-latest)	2m 16s
	30m 50s

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