bump(nickel-lang-lsp): update to v1.15.0 (#12667)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/nickel-lang-lsp/package.yaml

@@ -12,7 +12,7 @@ categories:
   - LSP
 
 source:
-  id: pkg:cargo/nickel-lang-lsp@1.14.0
+  id: pkg:cargo/nickel-lang-lsp@1.15.0
 
 schemas:
   lsp: vscode:https://raw.githubusercontent.com/tweag/nickel/{{version}}/lsp/vscode-extension/package.json