DOC: update min package versions in install.rst to align with v.1.5.0 requirements (#47727)
DOC: update min package versions in install.rst to align with v.1.5.0 requirements (#47727)

* package versions in install.rst match v.1.5.0.rst

* remove azure from optional deps as not yet supported officially

* correct from whatsnew. 2021.05 should be 2021.5

left-passed zeros are not the format of version numbers for fsspec or gcsfs and would cause pip to fail if anyone used them to fetch from PyPi

* align cols in install.rst
datapythonista/pandas,datapythonista/pandas,pandas-dev/pandas,pandas-dev/pandas,datapythonista/pandas,datapythonista/pandas,pandas-dev/pandas,pandas-dev/pandas