update Apache and Python versions

[norinespears]

CryoArks IT will not install the Web Portal until Apache and Python are updated. Also, Apache 7.5 is hard coded.

[grantfitzsimmons]

Apache Solr 7.5.x is at least hard-coded here:

webportal-installer/get_latest_solr_vers.py

Lines 25 to 31 in d7994bd

	matches = re.findall(r'href="7\.5\.(\d+)/"', index_html)
	versions = [tuple(int(x) for x in v) for v in matches]
	latest = sorted(versions, reverse=True)[0]
	print '7.5.%d' % latest

Our security team is complaining about the 7.5 version of Solr that is used by the Specify Portal as it's
"end-of-life."

From Tomislav at UTexas

[misilot]

Has anyone gotten at least Solr 8 to work?