Provide flex-doc via the main flex package (RHEL-33632)

Commit e7d1e0be25 removed and obsoleted
flex-doc, but did not 'Provides:' it.  This commit fixes that.

Fedora 40 commit: 6e3f209ce3390dbc83041818632a75940b52461d

Resolves: RHEL-33632

flex.spec

@@ -3,7 +3,7 @@
 Summary: A tool for generating scanners (text pattern recognizers)
 Name: flex
 Version: 2.6.4
-Release: 17%{?dist}
+Release: 18%{?dist}
 
 # An SPDX license string check done against flex-2.6.4 using fossology
 # found strings corresponding to the licenses noted below across the flex
@@ -20,6 +20,7 @@ BuildRequires: gettext gettext-devel bison m4 help2man gcc gcc-c++ automake libt
 BuildRequires: make
 
 Obsoletes: flex-doc < 2.6.4-8
+Provides: flex-doc = %{version}-%{release}
 
 %description
 The flex program generates scanners.  Scanners are programs which can
@@ -133,6 +134,9 @@ echo ============END TESTING===========
 %{_libdir}/*.a
 
 %changelog
+* Tue Jun 25 2024 Arjun Shankar <arjun@redhat.com> - 2.6.4-18
+- Provide flex-doc via the main flex package
+
 * Mon Jun 24 2024 Troy Dawson <tdawson@redhat.com> - 2.6.4-17
 - Bump release for June 2024 mass rebuild