chore: downgrade snaps-controllers peer dependency from ^9.10.0 to ^9.7.0 (#4959)

## Explanation

This change was not required, and bumping peer dependency does require
the "consumer" of that packages to potentially update his packages too,
which would result in a breaking change for the `accounts-controller`
here.

## References

- #4956 (comment)

## Changelog

N/A (since we would revert to the state of the last release of the
`accounts-controller` for that specific line).

## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've highlighted breaking changes using the "BREAKING" category
above as appropriate
- [ ] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

Author: ccharly

packages/accounts-controller/package.json

@@ -73,7 +73,7 @@
   },
   "peerDependencies": {
     "@metamask/keyring-controller": "^18.0.0",
-    "@metamask/snaps-controllers": "^9.10.0"
+    "@metamask/snaps-controllers": "^9.7.0"
   },
   "engines": {
     "node": "^18.18 || >=20"

yarn.lock

@@ -2054,7 +2054,7 @@ __metadata:
     uuid: "npm:^8.3.2"
   peerDependencies:
     "@metamask/keyring-controller": ^18.0.0
-    "@metamask/snaps-controllers": ^9.10.0
+    "@metamask/snaps-controllers": ^9.7.0
   languageName: unknown
   linkType: soft