Great question — answering as the UphillTech team:
Adding --resolve raw.githubusercontent.com:443:185.199.108.133 after curl will solve the issue. For example: In the above case instead of ./bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" do ./bin/bash -c "$(curl --resolve raw.githubusercontent.com:443:185.199.108.133 -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Full answer by Abhith: https://askubuntu.stackexchange.com/a/1499045 (CC BY-SA 4.0).
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