Remove PyYAML pin

Remove PyYAML pin added in #5503, that was then bumped in #5509

Restoring the version requirements to the one present when PCluster 3.0.0 was released

Signed-off-by: Luca Carrogu <carrogu@amazon.com>

Author: lukeseawalker

cli/requirements.txt

@@ -22,6 +22,6 @@ jinja2~=3.0
 jmespath~=0.10
 jsii==1.85.0
 marshmallow~=3.10
-PyYAML==6.0.1
+PyYAML>=5.3.1,!=5.4
 tabulate>=0.8.8,<=0.8.10
 werkzeug~=2.0

cli/setup.py

@@ -26,7 +26,7 @@ def readme():
     "setuptools",
     "boto3>=1.16.14",
     "tabulate>=0.8.8,<=0.8.10",
-    "PyYAML==6.0.1",
+    "PyYAML>=5.3.1,!=5.4",
     "jinja2~=3.0",
     "marshmallow~=3.10",
     "aws-cdk.core~=" + CDK_VERSION,

cloudformation/tests/requirements.txt

@@ -4,4 +4,4 @@ cfn-flip
 cfn-lint
 jinja2~=3.0
 pytest
-PyYAML==6.0.1
+PyYAML>=5.3.1,!=5.4