Update Gradle to 7.3
Update Gradle to 7.3

Gradle 7.3 is the first release with the official support of Java 17
See https://docs.gradle.org/7.3/release-notes.html

julianhyde/calcite,apache/calcite,looker-open-source/calcite,julianhyde/calcite,apache/calcite,apache/calcite,apache/calcite,apache/calcite,looker-open-source/calcite,looker-open-source/calcite,looker-open-source/calcite,apache/calcite,looker-open-source/calcite,looker-open-source/calcite,julianhyde/calcite,julianhyde/calcite,julianhyde/calcite,julianhyde/calcite