tree,parser: fix round-tripping of StorageParameter

[rafiss]

trafficstars

Previously, storage parameters could not round trip the parse-format-parse steps if the parameter key was a reserved keyword.

This was because the Name type was used for keys, which ends up double-quoting the name. For storage parameters, we want single quotes, as they are just string literals, so we can use a normal string type.

fixes https://github.com/cockroachdb/cockroach/issues/124380 Release note: None

[cockroach-teamcity]

This change is 

[rafiss]

tftr!

bors r+

[craig[bot]]

Build succeeded:

• acceptance
• local_roachtest_fips
• windows_build
• examples_orms
• linux_amd64_fips_build
• linux_arm64_build
• docker_image_amd64
• macos_arm64_build
• local_roachtest
• unit_tests
• lint
• linux_amd64_build
• macos_amd64_build
• check_generated_code

[blathers-crl[bot]]

Encountered an error creating backports. Some common things that can go wrong:

1. The backport branch might have already existed.
2. There was a merge conflict.
3. The backport branch contained merge commits.

You might need to create your backport manually using the backport tool.

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error creating merge commit from cf25884adb9e09803f344dbe2325e6dbef151c63 to blathers/backport-release-23.1-124521: POST https://api.github.com/repos/cockroachdb/cockroach/merges: 409 Merge conflict []

you may need to manually resolve merge conflicts with the backport tool.

Backport to branch 23.1.x failed. See errors above.

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