Add `TEST_PROPERTIES` keyword in `ecbuild_add_test` #39

Job	Run time
ci / setup	2s
ci / ${{ inputs.name_prefix }}codecov	0s
ci / test-gnu@debian-11	4m 49s
ci / ${{ inputs.name_prefix }}formatter	0s
ci / [email protected]	4m 52s
ci / [email protected]	4m 48s
ci / test-gnu@fedora-37	4m 50s
ci / ${{ inputs.name_prefix }}notify	0s
	19m 21s

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