docs: align SECURITY.md for refresh

[mizmo18]

Description

Amends the SECURITY.md for the reporting refresh, aligned with the content at https://github.com/cosmos/security/blob/main/SECURITY_WITHBOUNTY.md

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Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• [n/a] added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• run make lint and make test
• confirmed all CI checks have passed

Reviewers Checklist

All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[jessysaurusrex]

LGTM! This small repair to the reporting process will help improve our flow for triaging and resolving issues, and is a good first step towards the more robust, unified policy and process we'll be rolling out with core teams once we're in alignment.

[tac0turtle]

Is there anyway to get an update on the process being followed before merging this. Removing links to the security repo after it was added a few months ago will be confusing for users on what to expect.

[mizmo18]

Let me discuss with @jessysaurusrex. The working plan was to spot-fix now and later overhaul the security repo with the goal of making project-specific Security.md's as lean as possible so there is less churn going forward.

[mizmo18]

Realigned with https://github.com/cosmos/security/blob/main/SECURITY_WITHBOUNTY.md @tac0turtle, the content is the same now.

[tac0turtle]

thank you