Upgrade to Lucene-7.5.0-snapshot-b9e064b935 (#31839)

This snapshot includes LUCENE-8384 which blocks work in Lucene rollback.

Author: dnhatn

buildSrc/version.properties

@@ -1,5 +1,5 @@
 elasticsearch     = 6.4.0
-lucene            = 7.4.0
+lucene            = 7.5.0-snapshot-b9e064b935
 
 # optional dependencies
 spatial4j         = 0.7

docs/Versions.asciidoc

@@ -0,0 +1 @@
+3ef67619b7f6d891a0bc1f8c19bf6ab6a7106de1

modules/lang-expression/licenses/lucene-expressions-7.4.0.jar.sha1

@@ -30,7 +30,7 @@ forbiddenApis {
 
 dependencies {
   compile "org.apache.lucene:lucene-analyzers-icu:${versions.lucene}"
-  compile 'com.ibm.icu:icu4j:61.1'
+  compile 'com.ibm.icu:icu4j:62.1'
 }
 
 dependencyLicenses {

modules/lang-expression/licenses/lucene-expressions-7.5.0-snapshot-b9e064b935.jar.sha1

@@ -0,0 +1 @@
+7a4d00d5ec5febd252a6182e8b6e87a0a9821f81

plugins/analysis-icu/build.gradle

@@ -0,0 +1 @@
+332410cfb49be3ec445ccf4a10164baf8e1b2f81