Fix compile error

[akadusei]

Purpose

Fixes: #1906

Fix compile error arising from crystal-loot/exception_page

Description

Exception page shard introduced a breaking change on their master branch, leading to compile error in Lucky:

In src/lucky/error_action.cr:83:34

 83 | body: Lucky::ExceptionPage.for_runtime_exception(context, error).to_s,
                                 ^--------------------
Error: Error: undefined method 'for_runtime_exception' for Lucky::ExceptionPage.class

See https://github.com/crystal-loot/exception_page/pull/49.

Checklist

• [x] - An issue already exists detailing the issue/or feature request that this PR fixes
• [x] - All specs are formatted with crystal tool format spec src
• [ ] - Inline documentation has been added and/or updated
• [x] - Lucky builds on docker with ./script/setup
• [x] - All builds and specs pass on docker with ./script/test