Bump proc-macro2 from 1.0.6 to 1.0.13

[dependabot-preview]

Bumps proc-macro2 from 1.0.6 to 1.0.13.

Release notes

Sourced from proc-macro2's releases.

1.0.13

• Parse literal suffix on byte string, byte, and char literal tokens: br#"..."#suffix, b'?'suffix, '?'suffix

1.0.12

• Add a way to force avoid using the compiler's libproc_macro implementation even when available (#220)

1.0.11

(yanked)

1.0.10

• Enable span-locations feature when building for play.rust-lang.org

1.0.9

• Match the escaping behavior of libproc_macro when displaying non-ascii strings and characters

1.0.8

• Work around rust-lang/rust#58736 which caused panics in TokenStream::from_str

1.0.7

• Return meaningful spans from Group::span_open and Group::span_close when running with span-locations feature enabled outside of a procedural macro

Commits

• 3f9b24d Release 1.0.13
• f28fd3a Add test of raw and byte strings with suffix
• e62ab4b Format next_ch macro
• 8898a98 Rename Cursor::expect to avoid collision with Result::expect
• 7334752 Parse literal suffix on bytes and chars
• 6b1234b Parse literal suffix on raw and byte strings
• 5975a61 Condense character literal parser into one function
• 79837fc Condense byte literal parser into one function
• 8637d88 Parse close quotes just once
• f7bcad3 Separate out suffix parser to share with other literals
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #75.