build

Add GHA build-hpc running on ECMWF GPU partition #1516

Job	Run time
ci (Release, linux gnu-10)	19m 55s
ci (Release, linux gnu-12)	18m 50s
ci (Release, linux gnu-14)	18m 15s
ci (Release, linux clang-13)	18m 1s
ci (Release, linux clang-18)	19m 44s
ci (Release, linux intel)	12m 7s
ci (Release, linux intel-classic)	21m 17s
ci (Release, linux nvhpc-25.1)	26m 4s
ci (Release, macos)	8m 36s
ci (Debug, linux gnu-10)	23m 51s
ci (Debug, linux gnu-12)	19m 27s
ci (Debug, linux gnu-14)	18m 32s
ci (Debug, linux clang-13)	18m 25s
ci (Debug, linux clang-18)	18m 17s
ci (Debug, linux intel)	11m 22s
ci (Debug, linux intel-classic)	21m 50s
ci (Debug, linux nvhpc-25.1)	20m 54s
ci (Debug, macos)	9m 19s
	5h 24m 46s

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