sfeos

update ES env variable documentation (#410) #1224

Job	Run time
Python 3.10 testing with elasticsearch7	1m 52s
Python 3.9 testing with elasticsearch8	2m 0s
Python 3.9 testing with opensearch	1m 58s
Python 3.9 testing with elasticsearch7	1m 55s
Python 3.10 testing with elasticsearch8	1m 51s
Python 3.11 testing with elasticsearch7	2m 10s
Python 3.11 testing with elasticsearch8	2m 24s
Python 3.10 testing with opensearch	1m 55s
Python 3.12 testing with elasticsearch8	1m 54s
Python 3.12 testing with elasticsearch7	1m 59s
Python 3.13 testing with elasticsearch8	1m 56s
Python 3.12 testing with opensearch	1m 57s
Python 3.11 testing with opensearch	2m 10s
Python 3.13 testing with opensearch	1m 54s
Python 3.13 testing with elasticsearch7	1m 52s
	29m 47s

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