[BUG] `x-ms-parameter-location` should be `method` for `ascLocation` in JIT network access policies

- Field schema: https://github.com/Azure/azure-rest-api-specs/blob/c1c45178f4a761b48f1778ac46cdd3304d7e33ef/specification/security/resource-manager/common/v1/types.json#L337

- What happened?
All the Jit Network Access Policies REST endpoints expect ascLocation as a path parameter (see https://docs.microsoft.com/en-us/rest/api/securitycenter/jitnetworkaccesspolicies). The problem with the generated client is that ascLocation cannot be passed when calling the corresponding CRUD functions. Instead, the ascLocation is taken from the client properties.

- What did you expect or want to happen?
The property `x-ms-parameter-location` should be `method` (same as resourceGroupName or jitNetworkAccessPolicyName).

Open specification/security/resource-manager/common/v1/types.json at line 337 and inspect the ascLocation schema alongside resourceGroupName and jitNetworkAccessPolicyName. Confirm the generated CRUD operations currently take ascLocation from client properties, then update the parameter-location metadata and validate the REST specification or generated-client behavior.

Written by the indexing model from the issue text.