dev-libs/cppcodec: update EAPI 7 -> 8

Signed-off-by: David Seifert <soap@gentoo.org>

dev-libs/cppcodec/cppcodec-0.2.ebuild

@@ -1,9 +1,9 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
-inherit cmake-utils
+inherit cmake
 
 DESCRIPTION="C++11 library to encode/decode base64, base64url, base32, base32hex and hex"
 HOMEPAGE="https://github.com/tplgy/cppcodec"
@@ -31,5 +31,5 @@ src_configure() {
 	local mycmakeargs=(
 		-DBUILD_TESTING=$(usex test)
 	)
-	cmake-utils_src_configure
+	cmake_src_configure
 }