Installer script fixes for unsupported operating systems.

[william-stearns]

The fixes in this PR are for secondary/unsupported operating systems. They should not affect the operation or install of our supported operating systems.
As a side note, these fix issues with installing rita on localhost as we need to install ansible to get these working.

[william-stearns]

BTW, the PR checks seem to be failing on a filename issue unrelated to the PR:

        	Error Trace:	/home/runner/work/rita/rita/cmd/import_test.go:188
        	            				/home/runner/go/pkg/mod/github.com/stretchr/testify@v1.9.0/suite/suite.go:115
        	Error:      	elements differ
        	            	
        	            	extra elements in list A:
        	            	([]interface {}) (len=1) {
        	            	 (string) (len=64) "/home/runner/work/rita/rita/test_data/valid_tsv/open_http.log.gz"
        	            	}
        	            	
        	            	
        	            	extra elements in list B:
        	            	([]interface {}) (len=1) {
        	            	 (string) (len=61) "/home/runner/work/rita/rita/test_data/valid_tsv/open_http.log"
        	            	}