Fix D unittest injection query. (helix-editor#4562)

Author: gdamore

runtime/queries/d/textobjects.scm

@@ -4,6 +4,6 @@
 (class_declaration (aggregate_body) @class.inside) @class.around
 (interface_declaration (aggregate_body) @class.inside) @class.around
 (struct_declaration (aggregate_body) @class.inside) @class.around
-(unittest_declaration (block_statement) @test.insid) @test.around
+(unittest_declaration (block_statement) @test.inside) @test.around
 (parameter) @parameter.inside
-(template_parameter) @parameter.inside
+(template_parameter) @parameter.inside