Add syntax mapping for kubernetes config files #3859

Job	Run time
Run tests with updated syntaxes and themes	4m 57s
Ensure 'cargo fmt' has been run	20s
License checks	1m 47s
cargo audit	4s
Extract crate metadata	4s
Documentation	44s
Run tests with system wide configuration	2m 23s
Minimum supported rust version	1m 33s
aarch64-unknown-linux-musl (ubuntu-20.04)	3m 58s
aarch64-unknown-linux-gnu (ubuntu-20.04)	4m 2s
arm-unknown-linux-gnueabihf (ubuntu-20.04)	4m 12s
arm-unknown-linux-musleabihf (ubuntu-20.04)	4m 9s
i686-pc-windows-msvc (windows-2019)	6m 18s
i686-unknown-linux-gnu (ubuntu-20.04)	3m 40s
i686-unknown-linux-musl (ubuntu-20.04)	3m 56s
x86_64-apple-darwin (macos-12)	5m 34s
aarch64-apple-darwin (macos-14)	3m 5s
x86_64-pc-windows-gnu (windows-2019)	8m 5s
x86_64-pc-windows-msvc (windows-2019)	6m 38s
x86_64-unknown-linux-gnu (ubuntu-20.04)	3m 36s
x86_64-unknown-linux-musl (ubuntu-20.04)	3m 48s
all-jobs	1s
Publish to Winget	0s
	1h 12m 54s

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