v1.7.2

• Fixes incompatible curl binary from edge repository by using v3.15 repository,
• Rollback python version from 3.10 to 3.9.

v1.7.1

• libimagequant is moved to edge/main repo from edge/community repo.
• bump alpine to alpine:3.15 to avoid node problems.
• alpine:3.15 upgraded python3 to python3:3.10.2-r0 on 2022-01-28.
• Add timeout input to action.yml.