comps: Do not install already installed groups and environments

[pkratoch]

Report that the group or environment is already installed instead, or,
if the group was originally installed with a lesser reason, change its
reason.

Resolves: #1492

Tests: rpm-software-management/ci-dnf-stack#1791

[fhbash]

LGTM

before this PR:

❯ dnf group install c-development --assumeno
Updating and loading repositories:
Repositories loaded.
Package "make-1:4.4.1-11.fc43.x86_64" is already installed.
Package "gcc-15.2.1-4.fc43.x86_64" is already installed.
Package "gcc-c++-15.2.1-4.fc43.x86_64" is already installed.
Package "autoconf-2.72-7.fc43.noarch" is already installed.
Package "automake-1.18.1-2.fc43.noarch" is already installed.
Package "glibc-devel-2.42-4.fc43.x86_64" is already installed.
Package "pkgconf-2.3.0-3.fc43.x86_64" is already installed.
Package "binutils-2.45.1-1.fc43.x86_64" is already installed.
Package "bison-3.8.2-11.fc43.x86_64" is already installed.
Package "flex-2.6.4-20.fc43.x86_64" is already installed.
Package "gdb-16.3-6.fc43.x86_64" is already installed.
Package "libtool-2.5.4-7.fc43.x86_64" is already installed.
Package "strace-6.17-1.fc43.x86_64" is already installed.
Package "ctags-6.2.1-1.fc43.x86_64" is already installed.
Package "indent-2.2.13-10.fc43.x86_64" is already installed.
Package "valgrind-1:3.26.0-1.fc43.x86_64" is already installed.
Package "byacc-2.0.20240109-4.fc43.x86_64" is already installed.
Package "ccache-4.11.3-2.fc43.x86_64" is already installed.
Package "cscope-15.9-28.fc43.x86_64" is already installed.
Package "elfutils-0.194-1.fc43.x86_64" is already installed.
Package "ltrace-0.7.91-53.fc43.x86_64" is already installed.
Package "perf-6.17.8-300.fc43.x86_64" is already installed.

Package                                                                 Arch             Version                                                                  Repository                                    Size
Installing groups:
 C Development Tools and Libraries

Transaction Summary:

After this operation, 0 B extra will be used (install 0 B, remove 0 B).
Operation aborted by the user.

after:

❯ ./dnf5 group install c-development  --assumeno
Updating and loading repositories:
Repositories loaded.
Group "c-development" is already installed.
Package "make-1:4.4.1-11.fc43.x86_64" is already installed.
Package "gcc-15.2.1-4.fc43.x86_64" is already installed.
Package "gcc-c++-15.2.1-4.fc43.x86_64" is already installed.
Package "autoconf-2.72-7.fc43.noarch" is already installed.
Package "automake-1.18.1-2.fc43.noarch" is already installed.
Package "glibc-devel-2.42-4.fc43.x86_64" is already installed.
Package "pkgconf-2.3.0-3.fc43.x86_64" is already installed.
Package "binutils-2.45.1-1.fc43.x86_64" is already installed.
Package "bison-3.8.2-11.fc43.x86_64" is already installed.
Package "flex-2.6.4-20.fc43.x86_64" is already installed.
Package "gdb-16.3-6.fc43.x86_64" is already installed.
Package "libtool-2.5.4-7.fc43.x86_64" is already installed.
Package "strace-6.17-1.fc43.x86_64" is already installed.
Package "ctags-6.2.1-1.fc43.x86_64" is already installed.
Package "indent-2.2.13-10.fc43.x86_64" is already installed.
Package "valgrind-1:3.26.0-1.fc43.x86_64" is already installed.
Package "byacc-2.0.20240109-4.fc43.x86_64" is already installed.
Package "ccache-4.11.3-2.fc43.x86_64" is already installed.
Package "cscope-15.9-28.fc43.x86_64" is already installed.
Package "elfutils-0.194-1.fc43.x86_64" is already installed.
Package "ltrace-0.7.91-53.fc43.x86_64" is already installed.
Package "perf-6.17.8-300.fc43.x86_64" is already installed.

Nothing to do.