[HUDI-3195] Fix spark 3 pom (#4554)

- drop 3.0.x profile
- update readme
- update build CI bot.yml
- fix spark 3 bundle name

.github/workflows/bot.yml

@@ -20,10 +20,6 @@ jobs:
             spark: "spark2"
           - scala: "scala-2.11"
             spark: "spark2,spark-shade-unbundle-avro"
-          - scala: "scala-2.12"
-            spark: "spark3.0.x"
-          - scala: "scala-2.12"
-            spark: "spark3.0.x,spark-shade-unbundle-avro"
           - scala: "scala-2.12"
             spark: "spark3.1.x"
           - scala: "scala-2.12"

README.md

@@ -83,14 +83,11 @@ mvn clean package -DskipTests -Dscala-2.12
 The default Spark version supported is 2.4.4. To build for different Spark 3 versions, use the corresponding profile
 
 ```
-# Build against Spark 3.2.0 (default build shipped with the public jars)
+# Build against Spark 3.2.0 (the default build shipped with the public Spark 3 bundle)
 mvn clean package -DskipTests -Dspark3
 
 # Build against Spark 3.1.2
 mvn clean package -DskipTests -Dspark3.1.x
-
-# Build against Spark 3.0.3
-mvn clean package -DskipTests -Dspark3.0.x
 ```
 
 ### Build without spark-avro module

pom.xml

@@ -115,12 +115,10 @@
     <prometheus.version>0.8.0</prometheus.version>
     <http.version>4.4.1</http.version>
     <spark.version>${spark2.version}</spark.version>
-    <sparkbundle.version>${spark2bundle.version}</sparkbundle.version>
+    <sparkbundle.version></sparkbundle.version>
     <flink.version>1.13.1</flink.version>
     <spark2.version>2.4.4</spark2.version>
     <spark3.version>3.2.0</spark3.version>
-    <spark2bundle.version></spark2bundle.version>
-    <spark3bundle.version>3</spark3bundle.version>
     <hudi.spark.module>hudi-spark2</hudi.spark.module>
     <avro.version>1.8.2</avro.version>
     <scala11.version>2.11.12</scala11.version>
@@ -1572,7 +1570,7 @@
       <id>spark3</id>
       <properties>
         <spark.version>${spark3.version}</spark.version>
-        <sparkbundle.version>${spark3bundle.version}</sparkbundle.version>
+        <sparkbundle.version>${spark3.version}</sparkbundle.version>
         <scala.version>${scala12.version}</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
         <hudi.spark.module>hudi-spark3</hudi.spark.module>
@@ -1598,7 +1596,7 @@
       <properties>
         <spark3.version>3.1.2</spark3.version>
         <spark.version>${spark3.version}</spark.version>
-        <sparkbundle.version>${spark3bundle.version}</sparkbundle.version>
+        <sparkbundle.version>${spark3.version}</sparkbundle.version>
         <scala.version>${scala12.version}</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
         <hudi.spark.module>hudi-spark3</hudi.spark.module>
@@ -1618,29 +1616,6 @@
       </activation>
     </profile>
 
-    <profile>
-      <id>spark3.0.x</id>
-      <properties>
-        <spark3.version>3.0.3</spark3.version>
-        <spark.version>${spark3.version}</spark.version>
-        <scala.version>${scala12.version}</scala.version>
-        <scala.binary.version>2.12</scala.binary.version>
-        <hudi.spark.module>hudi-spark3</hudi.spark.module>
-        <scalatest.version>3.0.1</scalatest.version>
-        <kafka.version>2.4.1</kafka.version>
-        <fasterxml.version>${fasterxml.spark3.version}</fasterxml.version>
-        <fasterxml.jackson.databind.version>${fasterxml.spark3.version}</fasterxml.jackson.databind.version>
-        <fasterxml.jackson.module.scala.version>${fasterxml.spark3.version}</fasterxml.jackson.module.scala.version>
-        <fasterxml.jackson.dataformat.yaml.version>${fasterxml.spark3.version}</fasterxml.jackson.dataformat.yaml.version>
-        <skip.hudi-spark2.unit.tests>true</skip.hudi-spark2.unit.tests>
-      </properties>
-      <activation>
-        <property>
-          <name>spark3.0.x</name>
-        </property>
-      </activation>
-    </profile>
-
     <profile>
       <id>skipShadeSources</id>
       <properties>