Update automation_generate.sh (#26180)

### Packages impacted by this PR


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### Describe the problem that is addressed by this PR


### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


### Provide a list of related PRs _(if any)_


### Command used to generate this PR:**_(Applicable only to SDK release
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### Checklists
- [ ] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [ ] Added a changelog (if necessary)

---------

Co-authored-by: Mary Gao <yanmeigao1210@gmail.com>

.scripts/automation_generate.sh

@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-code-gen-pipeline --inputJsonPath=$1 --outputJsonPath=$2 --use=@autorest/typescript@6.0.0-rc.10 --typespecEmitter=@azure-tools/typespec-ts
+code-gen-pipeline --inputJsonPath=$1 --outputJsonPath=$2 --use=@autorest/typescript@^6.0.4 --typespecEmitter=@azure-tools/typespec-ts