fix(deps): bump @salesforce/core from 8.6.3 to 8.6.4

Bumps [@salesforce/core](https://github.com/forcedotcom/sfdx-core) from 8.6.3 to 8.6.4.
- [Release notes](https://github.com/forcedotcom/sfdx-core/releases)
- [Changelog](https://github.com/forcedotcom/sfdx-core/blob/main/CHANGELOG.md)
- [Commits](forcedotcom/sfdx-core@8.6.3...8.6.4)

---
updated-dependencies:
- dependency-name: "@salesforce/core"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -11,7 +11,7 @@
     "url": "https://github.com/forcedotcom/agents.git"
   },
   "dependencies": {
-    "@salesforce/core": "^8.5.2",
+    "@salesforce/core": "^8.6.4",
     "@salesforce/kit": "^3.2.3"
   },
   "devDependencies": {

yarn.lock

@@ -521,30 +521,6 @@
     strip-ansi "6.0.1"
     ts-retry-promise "^0.8.1"
 
-"@salesforce/core@^8.5.2":
-  version "8.6.3"
-  resolved "https://registry.npmjs.org/@salesforce/core/-/core-8.6.3.tgz"
-  integrity sha512-fxY3J9AttGztTY45AYH4QP1cKB3OD1fJMDd1j/ALGCI6EMb2iMPp52awKVKHxrd/eTbZhn1OV5Jr0r6nJx5Hhw==
-  dependencies:
-    "@jsforce/jsforce-node" "^3.6.1"
-    "@salesforce/kit" "^3.2.2"
-    "@salesforce/schemas" "^1.9.0"
-    "@salesforce/ts-types" "^2.0.10"
-    ajv "^8.17.1"
-    change-case "^4.1.2"
-    fast-levenshtein "^3.0.0"
-    faye "^1.4.0"
-    form-data "^4.0.0"
-    js2xmlparser "^4.0.1"
-    jsonwebtoken "9.0.2"
-    jszip "3.10.1"
-    pino "^9.4.0"
-    pino-abstract-transport "^1.2.0"
-    pino-pretty "^11.2.2"
-    proper-lockfile "^4.1.2"
-    semver "^7.6.3"
-    ts-retry-promise "^0.8.1"
-
 "@salesforce/core@^8.6.4":
   version "8.6.4"
   resolved "https://registry.npmjs.org/@salesforce/core/-/core-8.6.4.tgz"