dev-cpp/fkYAML: set S manually instead of inheriting vcs-snapshot

Signed-off-by: Pavel Sobolev <contact@paveloom.dev>

dev-cpp/fkYAML/fkYAML-0.4.2_p20250522.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit cmake vcs-snapshot
+inherit cmake
 
 EGIT_COMMIT="721edb3e1a817e527fd9e1e18a3bea300822522e"
 
@@ -11,6 +11,8 @@ DESCRIPTION="A C++ header-only YAML library"
 HOMEPAGE="https://fktn-k.github.io/fkYAML/"
 SRC_URI="https://github.com/fktn-k/fkYAML/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
 
+S="${WORKDIR}/${PN}-${EGIT_COMMIT}"
+
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="~amd64"