Fix ansible-test color ls logic.

changelogs/fragments/ansible-test-color-ls.yml

@@ -0,0 +1,2 @@
+bugfixes:
+    - ansible-test now enables color ``ls`` on a remote host only if the host supports the feature

test/lib/ansible_test/_data/setup/remote.sh

@@ -101,7 +101,11 @@ fi
 # Improve prompts on remote host for interactive use.
 # shellcheck disable=SC1117
 cat << EOF > ~/.bashrc
-alias ls='ls -G'
+if ls --color > /dev/null 2>&1; then
+    alias ls='ls --color'
+elif ls -G > /dev/null 2>&1; then
+    alias ls='ls -G'
+fi
 export PS1='\[\e]0;\u@\h: \w\a\]\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
 EOF