OTP 26 compat: fix ssl options on Tesla request

[tfiedlerdejanze]

I have tested this with localstack against sched on OTP 26 and confirmed it's working.

[tfiedlerdejanze]

@aaronrenner @edennis looks like the index we're using to run the tests is full :(

[aaronrenner]

It looks like there are a couple issues...

1. The test suite appears to not be cleaning up after itself and we're running out of indexes. We should probably address this separately.
2. I'm seeing a couple SSL related warnings in our test output:

Warning: 13:08:56.520 [warning] Description: ~c"Server authenticity is not verified since certificate path validation is not enabled"
     Reason: ~c"The option {verify, verify_peer} and one of the options 'cacertfile' or 'cacerts' are required to enable this."

This will be a great change, but we should probably get these resolved first.