Update dependency docker-api to "~>1.34.0"

Author: renovate[bot]

Gemfile

@@ -35,7 +35,7 @@ gem "config",                           "~>5.1",             :require => false
 gem "connection_pool",                                       :require => false # For Dalli
 gem "dalli",                            "~>3.2.3",           :require => false
 gem "default_value_for",                "~>4.0"
-gem "docker-api",                       "~>1.33.6",          :require => false
+gem "docker-api",                       "~>1.34.0",          :require => false
 gem "drb",                              "~>2.2",             :require => false
 gem "fast_gettext",                     "~>3.1"
 gem "ffi",                              "< 1.17.0",          :require => false # Locked down due to build issue assertion failure on 1.17.3