DRILL-8187: Dialect factory returns ANSI SQL dialect for BigQuery (#2513)

diff --git a/pom.xml b/pom.xml
index c1889b1..ba8d4d5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
       avoid_bad_dependencies plugin found in the file.
     -->
     <calcite.groupId>com.github.vvysotskyi.drill-calcite</calcite.groupId>
-    <calcite.version>1.21.0-drill-r7</calcite.version>
+    <calcite.version>1.21.0-drill-r8</calcite.version>
     <avatica.version>1.17.0</avatica.version>
     <janino.version>3.0.11</janino.version>
     <sqlline.version>1.12.0</sqlline.version>