Update supported versions to 0.2020.x in SECURITY.md#1365

Merged

amark merged 1 commit intoamark:masterfrom SimardeepSingh-zsh:master

Feb 7, 2024

+3-6

Commits on Feb 5, 2024

update SECURITY.md file and change the versions to 0.2020.x
SimardeepSingh-zsh
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