Do not set PROFILE_TASK environment variable

When this is set, the `--enable-optimizations` option is essentailly disabled,
as the profile task step is skipped.

For 3.13 on bullseye and alpine distros the version of expat has an issue that
causes the xml tests to fail and thus results in a failed build. This was not an
issue in version prior to 3.13 as the `Makefile` would ignore the failure and
continue as the default `PROFILE_TASK` included a `|| true` clause. That clause
was removed from 3.13's `Makefile`.

Thus for these distros, a patch is applied to the unit test to skip them

Author: RobertDeRose

Dockerfile-linux.template

@@ -5,6 +5,9 @@
 	def is_slim:
 		env.variant | startswith("slim-")
 	;
+	def is_bullseye:
+		env.variant | contains("bullseye")
+	;
 	def rcVersion:
 		env.version | rtrimstr("-rc")
 -}}
@@ -191,19 +194,46 @@ RUN set -eux; \
 {{ ) end -}}
 {{ if is_slim or is_alpine then ( -}}
 	LDFLAGS="${LDFLAGS:--Wl},--strip-all"; \
+{{ ) else "" end -}}
+{{ if ([ "3.13" ] | index(rcVersion)) and (is_alpine or is_bullseye) then ( -}}
+# Workaround https://github.com/python/cpython/issues/125067
+	printf '%s\n' \
+		"diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py" \
+		"index ebec9d8f18a..385735c1e18 100644" \
+		"--- a/Lib/test/test_xml_etree.py" \
+		"+++ b/Lib/test/test_xml_etree.py" \
+		"@@ -1504,9 +1504,11 @@ def test_simple_xml(self, chunk_size=None, flush=False):" \
+		"         self.assert_event_tags(parser, [('end', 'root')])" \
+		"         self.assertIsNone(parser.close())" \
+		"" \
+		"+    @unittest.skip('Work around: https://github.com/python/cpython/issues/125067')" \
+		"     def test_simple_xml_chunk_1(self):" \
+		"         self.test_simple_xml(chunk_size=1, flush=True)" \
+		"" \
+		"+    @unittest.skip('Work around: https://github.com/python/cpython/issues/125067')" \
+		"     def test_simple_xml_chunk_5(self):" \
+		"         self.test_simple_xml(chunk_size=5, flush=True)" \
+		"" \
+		"@@ -1731,6 +1733,7 @@ def test_flush_reparse_deferral_enabled(self):" \
+		"" \
+		"         self.assert_event_tags(parser, [('end', 'doc')])" \
+		"" \
+		"+    @unittest.skip('Work around: https://github.com/python/cpython/issues/125067')" \
+		"     def test_flush_reparse_deferral_disabled(self):" \
+		"         parser = ET.XMLPullParser(events=('start', 'end'))" > /tmp/python-3.13-libexpat-workaround.patch ; \
+	patch -p1  </tmp/python-3.13-libexpat-workaround.patch ; \
+	\
 {{ ) else "" end -}}
 	make -j "$nproc" \
 		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
 		"LDFLAGS=${LDFLAGS:-}" \
-		"PROFILE_TASK=${PROFILE_TASK:-}" \
 	; \
 # https://github.com/docker-library/python/issues/784
 # prevent accidental usage of a system installed libpython of the same version
 	rm python; \
 	make -j "$nproc" \
 		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
 		"LDFLAGS=${LDFLAGS:--Wl},-rpath='\$\$ORIGIN/../lib'" \
-		"PROFILE_TASK=${PROFILE_TASK:-}" \
 		python \
 	; \
 	make install; \