Update some more S3 artifact locations to use https

This commit updates some additional S3 artifact locations to use https
instead of http.

Relates 0e9d9f8a041ae50eebd0ae961524d7e08c3b0c20

buildSrc/src/test/java/org/elasticsearch/gradle/BuildExamplePluginsIT.java

@@ -117,7 +117,7 @@ public class BuildExamplePluginsIT extends GradleIntegrationTestCase {
         String luceneSnapshotRevision = System.getProperty("test.lucene-snapshot-revision");
         if (luceneSnapshotRepo != null) {
             luceneSnapshotRepo =  "  maven {\n" +
-                "    url \"http://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/" + luceneSnapshotRevision + "\"\n" +
+                "    url \"https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/" + luceneSnapshotRevision + "\"\n" +
                 "  }\n";
         }
         writeBuildScript("\n" +

docs/java-api/index.asciidoc

@@ -57,7 +57,7 @@ For Maven:
 <repository>
     <id>elastic-lucene-snapshots</id>
     <name>Elastic Lucene Snapshots</name>
-    <url>http://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9</url>
+    <url>https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9</url>
     <releases><enabled>true</enabled></releases>
     <snapshots><enabled>false</enabled></snapshots>
 </repository>
@@ -68,7 +68,7 @@ For Gradle:
 ["source","groovy",subs="attributes"]
 --------------------------------------------------
 maven {
-    url 'http://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9'
+    url 'https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9'
 }
 --------------------------------------------------
 

docs/java-rest/high-level/getting-started.asciidoc

@@ -93,7 +93,7 @@ For Maven:
 <repository>
     <id>elastic-lucene-snapshots</id>
     <name>Elastic Lucene Snapshots</name>
-    <url>http://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/83f9835</url>
+    <url>https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/83f9835</url>
     <releases><enabled>true</enabled></releases>
     <snapshots><enabled>false</enabled></snapshots>
 </repository>
@@ -104,7 +104,7 @@ For Gradle:
 ["source","groovy",subs="attributes"]
 --------------------------------------------------
 maven {
-    url 'http://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/83f9835'
+    url 'https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/83f9835'
 }
 --------------------------------------------------