Added immudb [skip ci]

Appraisals

@@ -210,6 +210,10 @@ appraise "ignite_client" do
   gem "ignite-client"
 end
 
+appraise "immudb" do
+  gem "immudb"
+end
+
 appraise "influxdb" do
   gem "influxdb"
 end

README.md

@@ -49,6 +49,7 @@ Data Stores
 - [drill-sergeant](#drill-sergeant)
 - [elasticsearch](#elasticsearch)
 - [hiredis](#hiredis)
+- [immudb](#immudb)
 - [influxdb](#influxdb)
 - [meilisearch](#meilisearch)
 - [mongo](#mongo)
@@ -574,6 +575,14 @@ Raises
 - `Errno::ETIMEDOUT` on connect timeout
 - `Errno::EAGAIN` on read timeout
 
+### immudb
+
+```ruby
+Immudb::Client.new(host, timeout: 1)
+```
+
+Raises `GRPC::DeadlineExceeded`
+
 ### influxdb
 
 ```ruby

gemfiles/immudb.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "minitest"
+gem "immudb"

gemfiles/immudb.gemfile.lock

@@ -0,0 +1,29 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    appraisal (2.4.1)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    google-protobuf (3.19.1-x86_64-darwin)
+    googleapis-common-protos-types (1.3.0)
+      google-protobuf (~> 3.14)
+    grpc (1.42.0-x86_64-darwin)
+      google-protobuf (~> 3.18)
+      googleapis-common-protos-types (~> 1.0)
+    immudb (0.1.0)
+      grpc
+    minitest (5.15.0)
+    rake (13.0.6)
+    thor (1.1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  appraisal
+  immudb
+  minitest
+
+BUNDLED WITH
+   2.2.32

test/immudb_test.rb

@@ -0,0 +1,15 @@
+require_relative "test_helper"
+
+class ImmudbTest < Minitest::Test
+  def test_connect
+    assert_timeout(GRPC::DeadlineExceeded) do
+      Immudb::Client.new(host: connect_host, timeout: 1).list_databases
+    end
+  end
+
+  def test_read
+    assert_timeout(GRPC::DeadlineExceeded) do
+      Immudb::Client.new(host: read_host, port: read_port, timeout: 1).list_databases
+    end
+  end
+end