IMPALA-12656: Bump sasl to 0.4a1 to allow Python3.11+ in impala-shell

Before this change impala-shell could not be installed on Python 3.11
duo to compilation failure in python-sasl. Checked installation
on Python 3.11/3.12/3.13.

Also bumps impyla version to 0.21a2.

Change-Id: I4efdd105e489e1d0a996d156fb7efbb6fad8da7d
Reviewed-on: http://gerrit.cloudera.org:8080/22593
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Riza Suminto <riza.suminto@cloudera.com>

infra/python/deps/requirements.txt

@@ -27,7 +27,7 @@ hdfs == 2.0.2
   docopt == 0.6.2
   execnet == 1.4.0
     apipkg == 1.4
-impyla == 0.21a1
+impyla == 0.21a3
   bitarray == 2.3.0
   pure-sasl == 0.6.2
   # six == 1.14.0 (specified separately)

shell/packaging/requirements.txt

@@ -2,7 +2,7 @@ bitarray==2.3.0
 configparser==4.0.2
 kerberos==1.3.1
 prettytable==0.7.2
-sasl==0.3.1
+sasl==0.4a1
 setuptools>=36.8.0
 six==1.14.0
 sqlparse==0.3.1