python3-pint: move PTESTS_PROBLEMS_META_PYTHON to PTESTS_SLOW_META_PYTHON

- Tested on qemux86-64.

- The PyPi package name defaults to PN without the python3- prefix, so there is no need to set PYPI_PACKAGE as pint, it is by default.

- xfailed tests are known failures upstream.

Ptest result:
=============

qemux86-64:

Testsuite summary
TOTAL: 2784
PASS: 2094
SKIP: 676
XFAIL: 12
FAIL: 0
XPASS: 2
ERROR: 0
DURATION: 1611
END: /usr/lib/python3-pint/ptest
2024-10-11T14:34
STOP: ptest-runner
TOTAL: 1 FAIL: 0

Signed-off-by: alperak <alperyasinak1@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/conf/include/ptest-packagelists-meta-python.inc

@@ -103,6 +103,7 @@ PTESTS_SLOW_META_PYTHON = "\
     python3-lz4 \
     python3-marshmallow \
     python3-pillow \
+    python3-pint \
     python3-pytest-localserver \
     python3-scrypt \
     python3-traitlets \
@@ -114,7 +115,6 @@ PTESTS_PROBLEMS_META_PYTHON ="\
     python3-betamax \
     python3-dnspython \
     python3-fastjsonschema \
-    python3-pint \
     python3-pyzmq \
     python3-whoosh \
 "