Update Temporal Java SDK version in Spring AI README #2453

Job	Run time
Unit test with cloud	4m 48s
Build native test server / Build native test server (ubuntu-latest, linux, amd64, false)	1m 1s
Build native test server / Build native test server (macos-15-intel, macOS, amd64)	7m 19s
Code format	56s
Build native test server / Build native test server (macos-latest, macOS, arm64)	10m 49s
Build native test server / Build native test server (ubuntu-24.04-arm, linux, arm64)	6m 56s
Build native test server / Build native test server (ubuntu-latest, linux, amd64, true)	5m 48s
Javadoc	3m 8s
Unit test with in-memory test service [Edge]	10m 40s
Build native test server / Build native test server (windows-latest, windows, amd64)	5m 43s
Unit test with docker service [JDK8]	13m 51s
	1h 10m 59s

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