fix: declaring 2 http libraries as runtime (#1341)

* fix: declaring 2 http libraries as runtime

Fixing similar issues as googleapis/java-pubsub#1239

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README.md

@@ -56,13 +56,13 @@ implementation 'com.google.cloud:google-cloud-bigtable'
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-bigtable:2.10.1'
+implementation 'com.google.cloud:google-cloud-bigtable:2.10.2'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigtable" % "2.10.1"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigtable" % "2.10.2"
 ```
 
 ## Authentication

google-cloud-bigtable/pom.xml

@@ -122,6 +122,16 @@
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.http-client</groupId>
+      <artifactId>google-http-client</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.http-client</groupId>
+      <artifactId>google-http-client-gson</artifactId>
+      <scope>runtime</scope>
+    </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
@@ -262,16 +272,6 @@
       <artifactId>opencensus-impl</artifactId>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>com.google.http-client</groupId>
-      <artifactId>google-http-client</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.google.http-client</groupId>
-      <artifactId>google-http-client-gson</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>