games/veloren: embed commit hash instead of tag name

WARN veloren_client: Server is running 185dccc1[2023-01-06], you are running v0.14.0[2023-01-06], versions might be incompatible!

https://gitlab.com/veloren/veloren/-/commit/b8e12811bf46

games/veloren/Makefile

@@ -48,7 +48,7 @@ post-patch:
 	@${REINPLACE_CMD} -e 's/"git"/"${TRUE}"/' \
 		${WRKSRC}/common/build.rs
 # Extract (snapshot) version from the port instead of empty file
-	@${REINPLACE_CMD} -e '/GIT_HASH/s/=.*/= "${DISTVERSIONFULL}";/' \
+	@${REINPLACE_CMD} -e '/GIT_HASH/s/=.*/= "${GL_COMMIT:C/(.{8}).*/\1/}";/' \
 		-e "/GIT_DATE.*static/s/=.*/= \"$$(date -r $$(${AWK} '/TIMESTAMP/ { print $$3 }' \
 			${DISTINFO_FILE}) +'%Y-%m-%d-%H:%M')\";/" \
 		${WRKSRC}/common/src/util/mod.rs