requirements: Add importlib-metadata and importlib-resources in dev.in.

importlib-metadata and importlib-resources are dependent packages for jsonschema
and cfn-lint respectively. They are built-in modules in later versions
of python (3.8, 3.7). When update-locked-requirements is run within python3.7 or
3.8 they will generate difference in locked files so we build these modules separately
to avoid such conflicts.

requirements/dev.in

@@ -60,3 +60,10 @@ pip-tools
 https://github.com/zulip/zulint/archive/aaed679f1ad38b230090eadd3870b7682500f60c.zip#egg=zulint==0.0.1
 
 -r mypy.in
+
+# These modules are built in later versions of python and will generate difference in locked files
+# if executed with python version > 3.6 so despite being dependent packages they have to be added separately.
+# built-in python > 3.7 needed by jsonschema
+importlib-metadata
+# built-in python > 3.6 needed by cfn-lint
+importlib-resources

requirements/dev.txt

@@ -343,12 +343,10 @@ imagesize==1.2.0 \
     # via sphinx
 importlib-metadata==1.5.0 \
     --hash=sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302 \
-    --hash=sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b \
-    # via jsonschema
+    --hash=sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b
 importlib-resources==1.0.2 \
     --hash=sha256:6e2783b2538bd5a14678284a3962b0660c715e5a0f10243fd5e00a4b5974f50b \
-    --hash=sha256:d3279fd0f6f847cced9f7acc19bd3e5df54d34f93a2e7bb5f238f81545787078 \
-    # via cfn-lint
+    --hash=sha256:d3279fd0f6f847cced9f7acc19bd3e5df54d34f93a2e7bb5f238f81545787078
 incremental==17.5.0 \
     --hash=sha256:717e12246dddf231a349175f48d74d93e2897244939173b01974ab6661406b9f \
     --hash=sha256:7b751696aaf36eebfab537e458929e194460051ccad279c72b755a167eebd4b3 \

version.py

@@ -26,4 +26,4 @@ LATEST_RELEASE_ANNOUNCEMENT = "https://blog.zulip.org/2019/12/13/zulip-2-1-relea
 #   historical commits sharing the same major version, in which case a
 #   minor version bump suffices.
 
-PROVISION_VERSION = '75.1'
+PROVISION_VERSION = '75.2'