Update MAINTAINERS #1021

Job	Run time
examples / client (ubuntu-latest)	9s
examples / multirepo (ubuntu-latest)	14s
examples / client (macos-latest)	13s
examples / multirepo (macos-latest)	17s
examples / client (windows-latest)	1m 38s
examples / multirepo (windows-latest)	1m 42s
examples / repository (ubuntu-latest)	11s
examples / root-signing (ubuntu-latest)	11s
examples / repository (macos-latest)	12s
examples / root-signing (macos-latest)	27s
examples / repository (windows-latest)	1m 39s
examples / root-signing (windows-latest)	2m 11s
examples / tuf-client-cli (ubuntu-latest)	10s
examples / tuf-client-cli (macos-latest)	39s
linting / golangci-lint	14s
examples / tuf-client-cli (windows-latest)	1m 41s
linting / govulncheck	15s
tests / Run (ubuntu-latest)	32s
tests / Run (macos-latest)	31s
tests / Run (windows-latest)	2m 14s
	15m 20s

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