get(ENV, "AWS_SESSION_EXPIRES", typemin(DateTime)) returns a string not a DateTime

[Alex Gardner]

line 18 and 19 of granule.jl is:

    expiry = get(ENV, "AWS_SESSION_EXPIRES", typemin(DateTime))
    if expiry < Dates.now(UTC)

but expiry::String and Dates.now(UTC)::Dates.DateTime so this line throws and error.

Changing line 18 to:
expiry = DateTime(get(ENV, "AWS_SESSION_EXPIRES", typemin(DateTime)))

should fix this

[Maarten Pronk]

Thanks for catching this! I'm gonna put some EarthData credentials in Github actions to test all these functions, it's too error prone otherwise.

[Maarten Pronk]

Fixed by 0e322f6