make-srpm.sh: update cmake macros and deps for cmake4

It seems that %cmake4 macros are no long provided in
rawhide, nor is there a `Provides: cmake4`.

https://fedoraproject.org/wiki/Changes/CMake4.0

Author: sfowl

make-srpm.sh

@@ -89,7 +89,7 @@ License:    GPL-3.0-or-later
 URL:        https://github.com/csutils/%{name}
 Source0:    https://github.com/csutils/%{name}/releases/download/%{name}-%{version}/%{name}-%{version}.tar.xz
 
-BuildRequires: cmake3
+BuildRequires: cmake
 BuildRequires: help2man
 
 %if 0%{?rhel} == 7
@@ -282,13 +282,13 @@ This package contains the unicontrol plug-in for csmock.
 %autosetup
 
 %build
-%cmake3                                       \\
+%cmake                                       \\
     -DVERSION='%{name}-%{version}-%{release}' \\
     -DPython3_EXECUTABLE='%{__python3}'
-%cmake3_build
+%cmake_build
 
 %install
-%cmake3_install
+%cmake_install
 
 # needed to create the csmock RPM
 %files