replace some transmutes with safe pointer casts · not-fl3/macroquad@dfa04a6

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions-rs/toolchain@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v2, actions-rs/toolchain@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

unexpected `cfg` condition name: `one_screenshot`

unexpected `cfg` condition name: `one_screenshot`

unexpected `cfg` condition name: `one_screenshot`

for loop over a `&Option`. This is more readably written as an `if let` statement

for loop over a `&mut Option`. This is more readably written as an `if let` statement

`macroquad` (lib) generated 5 warnings

`macroquad` (lib test) generated 5 warnings (5 duplicates)

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