Update askama requirement from 0.13.0 to 0.14.0 (#286)

Updates the requirements on [askama](https://github.com/askama-rs/askama) to permit the latest version.
- [Release notes](https://github.com/askama-rs/askama/releases)
- [Commits](askama-rs/askama@v0.13.0...v0.14.0)

---
updated-dependencies:
- dependency-name: askama
  dependency-version: 0.14.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

plotly/Cargo.toml

@@ -22,7 +22,7 @@ plotly_image = ["image"]
 plotly_embed_js = []
 
 [dependencies]
-askama = { version = "0.13.0", features = ["serde_json"] }
+askama = { version = "0.14.0", features = ["serde_json"] }
 dyn-clone = "1"
 erased-serde = "0.4"
 image = { version = "0.25", optional = true }