Update Rust crate minijinja to v0.19.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
minijinja	dependencies	minor	=0.18.1 -> =0.19.1

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Release Notes

mitsuhiko/minijinja

v0.19.1

Compare Source

• Fixed binary subtraction operator requiring a space. (#​94)
• Fixed trailing commas not working in functino calls. (#​95)

v0.19.0

Compare Source

• Small internal improvements to context creation. (#​79)
• Add support for JSON/YAML/JavaScript Escaping. (#​82)
• Add missing escape support for single quotes ('). (#​81)
• Added support for newlines in string literals. (#​85)
• Added support for block assignment syntax. (#​86)
• Added string concatenatino with + for Jinja compat. (#​87)
• Enable debug mode by default in debug builds. (#​88)
• Added render! macro and render_str. (#​89)
• Fixed an issue where trailing whitespace removal did not work on blocks. (#​90)
• Added loop.changed() method. (#​91)

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