Update HCL grammar repo

The repository was moved from the original authors personal GitHub to the `tree-sitter-grammars` organization.

Co-authored-by: Michael Davis <[email protected]>

languages.toml

@@ -1829,7 +1829,7 @@ auto-format = true
 
 [[grammar]]
 name = "hcl"
-source = { git = "https://github.com/MichaHoffmann/tree-sitter-hcl", rev = "9e3ec9848f28d26845ba300fd73c740459b83e9b" }
+source = { git = "https://github.com/tree-sitter-grammars/tree-sitter-hcl", rev = "9e3ec9848f28d26845ba300fd73c740459b83e9b" }
 
 [[language]]
 name = "tfvars"