guix: use cmake-minimal over cmake

Author: fanquake

contrib/guix/manifest.scm

@@ -611,5 +611,5 @@ inspecting signatures in Mach-O binaries.")
           ((string-contains target "-linux-")
            (list (make-bitcoin-cross-toolchain target)))
           ((string-contains target "darwin")
-           (list clang-toolchain-10 binutils cmake xorriso python-signapple))
+           (list clang-toolchain-10 binutils cmake-minimal xorriso python-signapple))
           (else '())))))