Build: Rename allVersions flag to allModules (apache#10499)

The meaning of the flag is to enable all modules. In particular, it does
not enable all Scala versions for the build. The new name more directly
conveys the intent.

.github/workflows/java-ci.yml

@@ -96,7 +96,7 @@ jobs:
       with:
         distribution: zulu
         java-version: 8
-    - run: ./gradlew -DallVersions build -x test -x javadoc -x integrationTest
+    - run: ./gradlew -DallModules build -x test -x javadoc -x integrationTest
 
   build-javadoc:
     runs-on: ubuntu-22.04

.github/workflows/publish-snapshot.yml

@@ -40,5 +40,5 @@ jobs:
           java-version: 8
       - run: |
           ./gradlew printVersion
-          ./gradlew -DallVersions publishApachePublicationToMavenRepository -PmavenUser=${{ secrets.NEXUS_USER }} -PmavenPassword=${{ secrets.NEXUS_PW }}
+          ./gradlew -DallModules publishApachePublicationToMavenRepository -PmavenUser=${{ secrets.NEXUS_USER }} -PmavenPassword=${{ secrets.NEXUS_PW }}
           ./gradlew -DflinkVersions= -DsparkVersions=3.3,3.4,3.5 -DscalaVersion=2.13 -DhiveVersions= publishApachePublicationToMavenRepository -PmavenUser=${{ secrets.NEXUS_USER }} -PmavenPassword=${{ secrets.NEXUS_PW }}

README.md

@@ -56,7 +56,7 @@ Iceberg is built using Gradle with Java 8, 11, or 17.
 * To invoke a build and run tests: `./gradlew build`
 * To skip tests: `./gradlew build -x test -x integrationTest`
 * To fix code style for default versions: `./gradlew spotlessApply`
-* To fix code style for all versions of Spark/Hive/Flink:`./gradlew spotlessApply -DallVersions`
+* To fix code style for all versions of Spark/Hive/Flink:`./gradlew spotlessApply -DallModules`
 
 Iceberg table support is organized in library modules:
 

settings.gradle

@@ -70,7 +70,7 @@ project(':delta-lake').name = 'iceberg-delta-lake'
 project(':kafka-connect').name = 'iceberg-kafka-connect'
 project(':open-api').name = 'iceberg-open-api'
 
-if (null != System.getProperty("allVersions")) {
+if (null != System.getProperty("allModules")) {
   System.setProperty("flinkVersions", System.getProperty("knownFlinkVersions"))
   System.setProperty("sparkVersions", System.getProperty("knownSparkVersions"))
   System.setProperty("hiveVersions", System.getProperty("knownHiveVersions"))