chore: standardize environment variables and font installation #43

Job	Run time
cargo build (windows-latest, stable)	1m 57s
cargo clippy (windows-latest, stable)	4m 13s
cargo fmt (windows-latest, stable)	46s
cargo build (windows-latest, nightly)	2m 21s
cargo clippy (windows-latest, nightly)	1m 44s
cargo fmt (windows-latest, nightly)	26s
cargo build (macos-latest, stable)	20s
cargo clippy (macos-latest, stable)	1m 9s
cargo fmt (macos-latest, stable)	8s
cargo build (macos-latest, nightly)	26s
cargo test (windows-latest, stable)	5m 12s
cargo fmt (macos-latest, nightly)	17s
cargo build (ubuntu-latest, stable)	13s
cargo fmt (ubuntu-latest, stable)	4s
cargo clippy (macos-latest, nightly)	25s
cargo test (windows-latest, nightly)	4m 19s
cargo build (ubuntu-latest, nightly)	19s
cargo fmt (ubuntu-latest, nightly)	11s
cargo clippy (ubuntu-latest, stable)	1m 13s
cargo test (macos-latest, stable)	2m 20s
cargo clippy (ubuntu-latest, nightly)	18s
cargo test (macos-latest, nightly)	2m 57s
cargo test (ubuntu-latest, stable)	7m 56s
cargo test (ubuntu-latest, nightly)	7m 50s
Upload Test Event	0s
	47m 4s

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