chore(deps): update dependency com.google.cloud:libraries-bom to v4.4…

….0 (#126)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:libraries-bom](https://togithub.com/GoogleCloudPlatform/cloud-opensource-java) | minor | `4.3.0` -> `4.4.0` |

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Source-Author: WhiteSource Renovate <bot@renovateapp.com>
Source-Date: Wed Apr 1 21:54:20 2020 +0200
Source-Repo: googleapis/java-logging
Source-Sha: 6f4fae2
Source-Link: 6f4fae2

README.md

@@ -17,7 +17,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>4.3.0</version>
+      <version>4.4.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-logging.git",
-        "sha": "c9839118ca83cb7381fea6d1066307fa0796d260"
+        "sha": "6f4fae2141662f0421364ea25f738366f3feaf41"
       }
     },
     {