feat: increased timeout for resource subaccount subscription

[diya-dhan]

Purpose

This PR provides a temporal workaround for #848

The timeout for subaccount application subscriptions has been increased from 10 minutes to 60 minutes to accommodate scenarios where the subscription process may take longer.

Instead of making the timeout a configurable parameter in the resource, the values for the Create and Delete functions were adjusted to avoid a schema change..

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[x] Feature
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Test the code via automated test

go test ./...

What to Check

Verify that the following are valid:

• Automated tests are executed successfully

Checklist for reviewer

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• The PR has the matching labels assigned to it.
• The PR has a milestone assigned to it.
• If the PR closes an issue, the issue is referenced.
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