Changes base to core20 in an attempt to fix the error `node: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by node)` during snap builds
Changes base to core20 in an attempt to fix the error `node: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by node)` during snap builds