[skip changelog] Bump go.bug.st/relaxed-semver from 0.12.0 to 0.15.0 #5335

Job	Run time
run-determination	1s
package-name-prefix	1s
Create artifact Windows_X86-32	49s
Create artifact Windows_X86-64	50s
Create artifact Linux_X86-32	48s
Create artifact Linux_X86-64	57s
Create artifact Linux_ARMv6	44s
Create artifact Linux_ARMv7	42s
Create artifact Linux_ARM64	41s
Create artifact macOS_64	56s
Create artifact macOS_ARM64	57s
Create artifact rpc-protocol-files	16s
Create artifact configuration-schema	15s
checksums	0s
	7m 57s

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