chore(deps): bump rustls-pemfile from 1.0.3 to 1.0.4 (#399)

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Bumps [rustls-pemfile](https://github.com/rustls/pemfile) from 1.0.3 to
1.0.4.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rustls/pemfile/commit/dffcbf7fbce8f499869a32c95770213b8c7e2b0f"><code>dffcbf7</code></a>
Bump version to 1.0.4</li>
<li><a
href="https://github.com/rustls/pemfile/commit/cc2ac26d5e0de8a66ec474f95b921049591b36b7"><code>cc2ac26</code></a>
docs: update README with 1.0.4 changelog.</li>
<li><a
href="https://github.com/rustls/pemfile/commit/cc3fe92711a6a53b88a84c741da67c0ef9bedf02"><code>cc3fe92</code></a>
Allow additionally parsing \r newlines in PEM files</li>
<li>See full diff in <a
href="https://github.com/rustls/pemfile/compare/v/1.0.3...v/1.0.4">compare
view</a></li>
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Cargo.lock

@@ -44,7 +44,7 @@ local-ip-address = "0.5.6"
 mime_guess = "2.0.4"
 percent-encoding = "2.2.0"
 rustls = "0.20.6"
-rustls-pemfile = "1.0.3"
+rustls-pemfile = "1.0.4"
 serde = { version = "1.0.192", features = ["derive"] }
 serde_json = "1.0.108"
 structopt = { version = "0.3.26", default-features = false }