[Dependency] : update dependencies

[fmotalleb]

• migrated too nullsafety (dart >=2.12.0)
• migrated to P.R. logger
• updated example

Note:

• tested (no unit tests).
• it need the P.R. on logger to work

[abarrettPS]

Is this project still active?

[fmotalleb]

Is this project still active?

I don't think so.