Update Rust crate convert_case to 0.7.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
convert_case	dependencies	minor	0.6.0 -> 0.7.0

---

Configuration

📅 Schedule: Branch creation - "* 0-3 * * 1" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path packages/floating-ui-examples/Cargo.toml --package convert_case@0.6.0 --precise 0.7.1
    Updating crates.io index
error: failed to select a version for the requirement `convert_case = "^0.6.0"`
candidate versions found which didn't match: 0.7.1
location searched: crates.io index
required by package `leptos_macro v0.6.15`
    ... which satisfies dependency `leptos_macro = "^0.6.15"` (locked to 0.6.15) of package `leptos v0.6.15`
    ... which satisfies dependency `leptos = "^0.6.15"` (locked to 0.6.15) of package `slides-floating-ui-examples v0.0.1 (/tmp/renovate/repos/github/RustForWeb/slides/packages/floating-ui-examples)`

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path packages/radix-primitives-examples/Cargo.toml --package convert_case@0.6.0 --precise 0.7.1
    Updating crates.io index
error: failed to select a version for the requirement `convert_case = "^0.6.0"`
candidate versions found which didn't match: 0.7.1
location searched: crates.io index
required by package `leptos_macro v0.6.15`
    ... which satisfies dependency `leptos_macro = "^0.6.15"` (locked to 0.6.15) of package `leptos v0.6.15`
    ... which satisfies dependency `leptos = "^0.6.15"` (locked to 0.6.15) of package `slides-floating-ui-examples v0.0.1 (/tmp/renovate/repos/github/RustForWeb/slides/packages/floating-ui-examples)`