correct requirements path

Author: rerpha

.github/workflows/Linter.yml

@@ -5,3 +5,4 @@ jobs:
     uses: ISISComputingGroup/reusable-workflows/.github/workflows/linters.yml@main
     with:
       compare-branch: origin/master
+      requirements-path: installation_and_upgrade/requirements.txt

installation_and_upgrade/ibex_install_utils/ca_utils.py

@@ -4,6 +4,7 @@
 from socket import gethostname
 from typing import Any
 
+import epicscorelibs.path.pyepics  # noqa: F401
 from epics import caget, caput
 
 from ibex_install_utils.file_utils import FileUtils

installation_and_upgrade/ibex_install_utils/install_tasks.py

@@ -3,7 +3,7 @@
 import json
 import os
 import warnings
-import epicscorelibs.path.pyepics
+import epicscorelibs.path.pyepics  # noqa: F401
 from epics import caget
 from ibex_install_utils.ca_utils import get_machine_details_from_identifier
 from ibex_install_utils.file_utils import LABVIEW_DAE_DIR, FileUtils