fix: Add reject value when rejecting connection promise on transportClose

[amiryadid-fb]

Description

On relayer transportOpen, when waiting for provider.connect to resolve, it might get stuck so there's a Promise.race to reject the promise if transportClosed is called during connection.
In the case of rejecting it like so, the reject is called with no value which causes the catch close to throw another exception (since it tried to access message of undefined) instead of handling the current one correctly.

Due Diligence

• Breaking change
• Requires a documentation update
• Related docs issue/PR (if docs are not included in this PR):
• Requires a e2e/integration test update

[ganchoradkov]

Good catch 💯 thanks for resolving this!
I'm seeing the CI is failing but that is due to no access to org ci params