Bump grpc.version from 1.63.0 to 1.64.0 #40878

Job	Run time
CI Sanity Check	32s
Initial JDK 17 Build	14m 19s
Attach pull request number	3s
Calculate Test Jobs	14s
Maven Tests - JDK 17	1h 0m 12s
Devtools Tests - JDK 17	11m 18s
Maven Tests - JDK 17 Windows	1h 12m 56s
Devtools Tests - JDK 21	11m 43s
Gradle Tests - JDK 17	25m 10s
Devtools Tests - JDK 17 Windows	17m 20s
Kubernetes Tests - JDK 17	4m 1s
JVM Tests - JDK 17	2h 37m 33s
Gradle Tests - JDK 17 Windows	41m 35s
Kubernetes Tests - JDK 21	4m 13s
JVM Tests - JDK 21	3h 34m 12s
Quickstarts Compilation - JDK 17	8m 15s
Kubernetes Tests - JDK 17 Windows	3m 17s
JVM Tests - JDK 17 Windows	3h 34m 31s
MicroProfile TCKs Tests	8m 41s
Native Tests - Virtual Thread - Main	22m 48s
Native Tests - Main	8m 17s
Native Tests - Virtual Thread - Messaging	9m 51s
Native Tests - Data1	32m 13s
Native Tests - Virtual Thread - Security	3m 26s
Native Tests - Data2	29m 22s
Native Tests - Data3	24m 54s
Native Tests - Data4	19m 18s
Native Tests - Data5	22m 2s
Native Tests - Data6	31m 29s
Native Tests - Data7	38m 41s
Native Tests - Amazon	17m 17s
Native Tests - Messaging1	31m 32s
Native Tests - Messaging2	14m 47s
Native Tests - Security1	22m 38s
Native Tests - Security2	30m 12s
Native Tests - Security3	14m 13s
Native Tests - Cache	18m 15s
Native Tests - HTTP	45m 10s
Native Tests - Misc1	27m 29s
Native Tests - Misc2	15m 50s
Native Tests - Misc3	29m 43s
Native Tests - Misc4	47m 46s
Native Tests - Spring	21m 48s
Native Tests - gRPC	24m 49s
Native Tests - Windows support	10m 24s
Native Tests - DevTools Integration Tests	5m 14s
Native Tests - AWT, ImageIO and Java2D	6m 53s
Build report	39s
	1d 0h 57m 5s

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