Reduce docker images (#436)
Reduce docker images (#436)

* Related: ofz#398 cut down on num layers created

* move https instead of http where we can

now that https is available on dev-www.libreoffice.org

* cut down more num layers

ssbr/oss-fuzz,google/oss-fuzz,googlefonts/oss-fuzz,googlefonts/oss-fuzz,ssbr/oss-fuzz,googlefonts/oss-fuzz,robertswiecki/oss-fuzz,skia-dev/oss-fuzz,skia-dev/oss-fuzz,google/oss-fuzz,vitalybuka/oss-fuzz,vitalybuka/oss-fuzz,FeliciaLim/oss-fuzz,googlefonts/oss-fuzz,google/oss-fuzz,ssbr/oss-fuzz,skia-dev/oss-fuzz,skia-dev/oss-fuzz,kcc/oss-fuzz,google/oss-fuzz,googlefonts/oss-fuzz,oliverchang/oss-fuzz,skia-dev/oss-fuzz,oliverchang/oss-fuzz,oliverchang/oss-fuzz,skia-dev/oss-fuzz,google/oss-fuzz,robertswiecki/oss-fuzz,googlefonts/oss-fuzz,skia-dev/oss-fuzz,ssbr/oss-fuzz,robertswiecki/oss-fuzz,googlefonts/oss-fuzz,google/oss-fuzz,FeliciaLim/oss-fuzz,robertswiecki/oss-fuzz,google/oss-fuzz,googlefonts/oss-fuzz,FeliciaLim/oss-fuzz,skia-dev/oss-fuzz,robertswiecki/oss-fuzz,kcc/oss-fuzz,robertswiecki/oss-fuzz,google/oss-fuzz,google/oss-fuzz,robertswiecki/oss-fuzz,FeliciaLim/oss-fuzz,robertswiecki/oss-fuzz,robertswiecki/oss-fuzz,kcc/oss-fuzz,vitalybuka/oss-fuzz,vitalybuka/oss-fuzz,robertswiecki/oss-fuzz,google/oss-fuzz,vitalybuka/oss-fuzz,oliverchang/oss-fuzz,googlefonts/oss-fuzz,FeliciaLim/oss-fuzz,skia-dev/oss-fuzz,skia-dev/oss-fuzz,oliverchang/oss-fuzz,kcc/oss-fuzz,googlefonts/oss-fuzz,skia-dev/oss-fuzz,google/oss-fuzz,ssbr/oss-fuzz,robertswiecki/oss-fuzz,kcc/oss-fuzz