Upgrade CI images to Docker 20.10.20
Upgrade CI images to Docker 20.10.20

Closes gh-32810

htynkn/spring-boot,spring-projects/spring-boot,aahlenst/spring-boot,spring-projects/spring-boot,htynkn/spring-boot,dreis2211/spring-boot,spring-projects/spring-boot,htynkn/spring-boot,aahlenst/spring-boot,scottfrederick/spring-boot,vpavic/spring-boot,wilkinsona/spring-boot,htynkn/spring-boot,spring-projects/spring-boot,scottfrederick/spring-boot,htynkn/spring-boot,vpavic/spring-boot,spring-projects/spring-boot,dreis2211/spring-boot,vpavic/spring-boot,scottfrederick/spring-boot,dreis2211/spring-boot,aahlenst/spring-boot,aahlenst/spring-boot,spring-projects/spring-boot,aahlenst/spring-boot,wilkinsona/spring-boot,wilkinsona/spring-boot,dreis2211/spring-boot,wilkinsona/spring-boot,vpavic/spring-boot,scottfrederick/spring-boot,wilkinsona/spring-boot,vpavic/spring-boot,htynkn/spring-boot,wilkinsona/spring-boot,scottfrederick/spring-boot,dreis2211/spring-boot,vpavic/spring-boot,scottfrederick/spring-boot,aahlenst/spring-boot,dreis2211/spring-boot