Bump minimum supported Rust version to 1.63.0 · fflorent/nom_locate@e11de2e

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 `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/

unused imports: `Copied`, `Enumerate`

unused imports: `RangeFull`, `Range`

unused import: `core::slice::Iter`

unused imports: `CharIndices`, `Chars`

`nom_locate` (lib) generated 4 warnings (run `cargo fix --lib -p nom_locate` to apply 4 suggestions)

unused imports: `Copied`, `Enumerate`

unused imports: `RangeFull`, `Range`

unused import: `core::slice::Iter`

unused imports: `CharIndices`, `Chars`

`nom_locate` (lib) generated 4 warnings (run `cargo fix --lib -p nom_locate` to apply 4 suggestions)

type alias `StrSpan` is never used

type alias `BytesSpan` is never used

struct `Position` is never constructed

function `test_str_fragments` is never used

function `find_substring` is never used

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