0.9.0 post release (#1773)

https://github.com/apache/iceberg-python/blob/main/mkdocs/docs/how-to-release.md#update-the-github-template

1. Update the Github template
2. Update the integration tests

Author: kevinjqliu

.github/ISSUE_TEMPLATE/iceberg_bug_report.yml

@@ -28,7 +28,8 @@ body:
       description: What Apache Iceberg version are you using?
       multiple: false
       options:
-        - "0.8.1 (latest release)"
+        - "0.9.0 (latest release)"
+        - "0.8.1"
         - "0.8.0"
         - "0.7.1"
         - "0.7.0"

dev/Dockerfile

@@ -40,7 +40,7 @@ WORKDIR ${SPARK_HOME}
 ENV SPARK_VERSION=3.5.4
 ENV ICEBERG_SPARK_RUNTIME_VERSION=3.5_2.12
 ENV ICEBERG_VERSION=1.8.0
-ENV PYICEBERG_VERSION=0.8.1
+ENV PYICEBERG_VERSION=0.9.0
 
 RUN curl --retry 5 -s -C - https://archive.apache.org/dist/spark/spark-${SPARK_VERSION}/spark-${SPARK_VERSION}-bin-hadoop3.tgz -o spark-${SPARK_VERSION}-bin-hadoop3.tgz \
  && tar xzf spark-${SPARK_VERSION}-bin-hadoop3.tgz --directory /opt/spark --strip-components 1 \