abseil-cpp: Upgrade to 20250512.1 https://github.com/openembedded/meta-openembedded/pull/968 This is needed for the usage of absl_nullable. Tested: - platform11 - http://fusion2/57a4a063-8747-32c9-b1cd-a5581ca0464e - http://fusion2/7ec84d2b-d781-39e7-86f7-6c76f55bcabd - platform5: http://fusion2/3b3785d1-5322-3867-8000-3f98b1712486 - platform15: http://fusion2/01b60dd3-e058-3533-9e91-384df8ad2f51 - platform17: http://fusion2/2c207941-78c9-3a3c-bf80-9d72f31f22f0 Google-Bug-Id: 401047732 Change-Id: I31155caf60fc99f0cbfad5d28e9efcaed2d96d17 Signed-off-by: Willy Tu <wltu@google.com>