Chore: [AEA-6034] - stop running regression tests against deprecated v1 (#2624)

## Summary

- 🤖 Operational or Infrastructure Change

### Details

As no suppliers are using v1 any more, stop running the regression
tests.
Whole v1 API to be removed shortly.

Author: tstephen-nhs

.github/workflows/ci.yml

@@ -86,7 +86,7 @@ jobs:
       REGRESSION_TEST_PRODUCT: PFP-APIGEE
       FORWARD_CSOC_LOGS: false
       ALLOW_NHS_NUMBER_OVERRIDE: true
-      REGRESSION_TEST_NON_PROXYGEN: true
+      REGRESSION_TEST_NON_PROXYGEN: false
       pinned_image: ${{ needs.get_config_values.outputs.pinned_image }}
     secrets:
       REGRESSION_TESTS_PEM: ${{ secrets.REGRESSION_TESTS_PEM }}
@@ -164,7 +164,7 @@ jobs:
       REGRESSION_TEST_PRODUCT: PFP-APIGEE
       FORWARD_CSOC_LOGS: false
       ALLOW_NHS_NUMBER_OVERRIDE: true
-      REGRESSION_TEST_NON_PROXYGEN: true
+      REGRESSION_TEST_NON_PROXYGEN: false
       pinned_image: ${{ needs.get_config_values.outputs.pinned_image }}
     secrets:
       REGRESSION_TESTS_PEM: ${{ secrets.REGRESSION_TESTS_PEM }}

.github/workflows/release.yml

@@ -86,7 +86,7 @@ jobs:
       ENABLE_ALERTS: true
       STATE_MACHINE_LOG_LEVEL: ALL
       RUN_REGRESSION_TESTS: true
-      REGRESSION_TEST_NON_PROXYGEN: true
+      REGRESSION_TEST_NON_PROXYGEN: false
       REGRESSION_TEST_PRODUCT: PFP-APIGEE
       FORWARD_CSOC_LOGS: false
       TC007_NHS_NUMBERS: ${{vars.TC007_NHS_NUMBERS}}
@@ -212,7 +212,7 @@ jobs:
       ENABLE_ALERTS: true
       STATE_MACHINE_LOG_LEVEL: ALL
       RUN_REGRESSION_TESTS: true
-      REGRESSION_TEST_NON_PROXYGEN: true
+      REGRESSION_TEST_NON_PROXYGEN: false
       REGRESSION_TEST_PRODUCT: PFP-APIGEE
       FORWARD_CSOC_LOGS: false
       TC007_NHS_NUMBERS: ${{vars.TC007_NHS_NUMBERS}}
@@ -251,7 +251,7 @@ jobs:
       ENABLE_ALERTS: true
       STATE_MACHINE_LOG_LEVEL: ALL
       RUN_REGRESSION_TESTS: true
-      REGRESSION_TEST_NON_PROXYGEN: true
+      REGRESSION_TEST_NON_PROXYGEN: false
       REGRESSION_TEST_PRODUCT: PFP-APIGEE
       FORWARD_CSOC_LOGS: false
       TC007_NHS_NUMBERS: ${{vars.TC007_NHS_NUMBERS}}