fix ag grid header style (#11891) #32240

Job	Run time
Engine (GraalVM CE) (macos, amd64)	43m 0s
Engine (GraalVM CE) (windows, amd64)	16m 6s
Engine (GraalVM CE) (linux, amd64)	17m 41s
JVM Tests (GraalVM CE) (macos, amd64)	56m 55s
JVM Tests (GraalVM CE) (linux, amd64)	20m 11s
JVM Tests (GraalVM CE) (windows, amd64)	44m 33s
Standard Library Tests (GraalVM CE) (linux, amd64)	21m 10s
Standard Library Tests (GraalVM CE) (macos, amd64)	43m 36s
Standard Library Tests (GraalVM CE) (windows, amd64)	22m 27s
Verify License Packages (linux, amd64)	1m 39s
	4h 47m 18s

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