Update Rust crate minijinja to 0.30

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
minijinja	dependencies	minor	0.27 -> 0.30

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Release Notes

mitsuhiko/minijinja

v0.30.1

Compare Source

• Changed add_global to perform Into<Value> implicitly.
• Added source_mut to retrieve a mutable reference to the source.
• Improved Python bindings by adding support for template reloading, better
  documentation, error reporting.
• Added pass_state to the Python binding.

v0.30.0

Compare Source

• Expose debug flag from environment.
• Added experimental Python bindings.

v0.29.0

Compare Source

• Resolve a runtime panic if {% extends %} appears in the template
  but never is executed.
• Fixed recursion detection for macros.
• Enforce a maximum size of 10000 items on the range output.
• Added fuel tracking support.
• Added none test. (#​185)
• Improved various issues with whitespace trimming. (#​187)
• Value::default now returns Undefined rather than None.
• Added support for loop.previtem and loop.nextitem. (#​188)

v0.28.0

Compare Source

• Added capitalize filter. (#​163)
• Added support for {% call %}. (#​164)
• Added support for {% do %}. (#​167)
• Improved testsuite to execute on wasm32-wasi.

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