Merge #1014 #1018

1014: Prepare release v0.11.3 r=chitoyuu a=chitoyuu

This will be a minor non-breaking maintenance update, releasing additions and fixes since 0.11.2 to crates before we move on to 0.12.

1018: Update unindent requirement from 0.1.5 to 0.2.0 r=chitoyuu a=dependabot[bot]

Updates the requirements on [unindent](https://github.com/dtolnay/indoc) to permit the latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dtolnay/indoc/releases">unindent's releases</a>.</em></p>
<blockquote>
<h2>0.2.0</h2>
<ul>
<li>Rewrite to use <a href="https://github.com/dtolnay/proc-macro-hack"><code>proc-macro-hack</code></a> and work on stable Rust</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/dtolnay/indoc/commit/56948438be16b3460636d1364a4afd9e341db4b7"><code>5694843</code></a> Release 0.2.0</li>
<li><a href="https://github.com/dtolnay/indoc/commit/84a3e3826d5d714f30b2097148b4a01bf3088c29"><code>84a3e38</code></a> Copy readme content to rustdoc</li>
<li><a href="https://github.com/dtolnay/indoc/commit/120f94d9b821b34636186f69d140027b78ac6f4d"><code>120f94d</code></a> Set html_root_url</li>
<li><a href="https://github.com/dtolnay/indoc/commit/9ca73f9bc5800c533f2f4eff47922ec5011e26a6"><code>9ca73f9</code></a> Update readme for 0.2</li>
<li><a href="https://github.com/dtolnay/indoc/commit/fb4764de54425d93d1c478372e11baf64f5cc8df"><code>fb4764d</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/dtolnay/indoc/issues/11">#11</a> from dtolnay/hack</li>
<li><a href="https://github.com/dtolnay/indoc/commit/4d3bc1b37d6a9ebd73fd338f786b3c8f777ba215"><code>4d3bc1b</code></a> Rewrite using proc-macro-hack</li>
<li><a href="https://github.com/dtolnay/indoc/commit/e9443ddfc8efc7ffd81acfc0130b441810617bdd"><code>e9443dd</code></a> Add feature(plugin) to the readme example code</li>
<li><a href="https://github.com/dtolnay/indoc/commit/e4b25e04d1536ec52d03185be207106514c8a43e"><code>e4b25e0</code></a> Release 0.1.15</li>
<li><a href="https://github.com/dtolnay/indoc/commit/8d8920fa85ecd23d65f46a421e2e01628a43dc95"><code>8d8920f</code></a> Update to syntex 0.51</li>
<li><a href="https://github.com/dtolnay/indoc/commit/ecc698400cb3e3b816903d93be0cb3c95007f5fa"><code>ecc6984</code></a> Enable email notifications</li>
<li>Additional commits viewable in <a href="https://github.com/dtolnay/indoc/compare/0.1.5...0.2.0">compare view</a></li>
</ul>
</details>
<br />


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</details>

Co-authored-by: Chitose Yuuzaki <chitoyuu@potatoes.gay>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Merge #1002

1002: Catch null object pointers in Variant::is_nil r=chitoyuu a=chitoyuu

With varcall, Godot sometimes return null objects as Variants with `VariantType::Object` but a null pointer, instead of the usually expected/assumed `VariantType::Nil`. This caused `Option::from_variant` to panic in case of null objects returned by Godot in this way.

Fix #1001

Co-authored-by: Chitose Yuuzaki <chitoyuu@potatoes.gay>

Merge #1000

1000: Prepare 0.11.1 release r=chitoyuu a=chitoyuu

## Done

- Fixed `Varargs::as_slice` / optional argument error reporting
- Added CI checks for required error messages

Close #967

## Todo

- Write changelogs

Co-authored-by: Chitose Yuuzaki <chitoyuu@potatoes.gay>

Update CI to accept 0.11.* releases

Merge #953

953: Prepare 0.10.2 release r=Bromeon a=Bromeon



Co-authored-by: Jan Haller <bromeon@gmail.com>

Merge #937

937: Prepare 0.10.1 release r=Bromeon a=Bromeon

bors try

Co-authored-by: Jan Haller <bromeon@gmail.com>

Add 'std' feature for regex crate

Fix explicit version requirement in dev-dependencies

This is used for doc-tests, and would use a cyclic dependency if an explicit version is specified.
See also: rust-lang/cargo#4242

Also add some output to publishing CI.

Merge #687

687: Bump version to 0.9.3 r=toasteater a=toasteater



Co-authored-by: toasteater <48371905+toasteater@users.noreply.github.com>

Merge #683

683: Prepare release 0.9.2 r=toasteater a=toasteater

This is a minor release focusing on improving documentation and rounding out rough edges of the API.

- Bumped all version numbers to 0.9.2
- Bumped dependencies to latest versions.
- Updated CHANGELOG.

Co-authored-by: toasteater <48371905+toasteater@users.noreply.github.com>