Update dependencies

Update all client dependencies, mainly for security reason:

• jackson-annotations 2.9.7 -> 2.9.8
• jackson-core 2.9.7 -> 2.9.8
• jackson-databind 2.9.7 -> 2.9.8
• jackson-datatype-jsr310 2.9.7 -> 2.9.8
• guava 23.5-jre -> 27.0.1-jre
• okhttp 3.9.1 -> 3.12.1
• okio 1.13.0 -> 2.2.2
• retrofit 2.3.0 -> 2.5.0
• commons-io 2.5 -> 2.6
• commons-lang3 3.6 -> 3.8.1
• awaitility 3.1.1 -> 3.1.6