DPTP-4833: Disable sigstore verification for 4.22 hive clusterpools (#78668)

...until they are no longer using nightlies.

Author: 2uasimojo

clusters/hosted-mgmt/hive/pools/openshift-ci/ci-ocp-4-22-0-amd64-aws-us-east-1_clusterpool.yaml

@@ -23,6 +23,9 @@ spec:
   installAttemptsLimit: 1
   installConfigSecretTemplateRef:
     name: install-config-aws-us-east-1
+  installerEnv:
+  - name: OPENSHIFT_INSTALL_EXPERIMENTAL_DISABLE_IMAGE_POLICY
+    value: "true"
   labels:
     tp.openshift.io/owner: openshift-ci
   maxSize: 10

clusters/hosted-mgmt/hive/pools/openshift-observability/obs-ocp-4-22-0-amd64-aws-us-east-2_clusterpool.yaml

@@ -23,6 +23,9 @@ spec:
   installAttemptsLimit: 1
   installConfigSecretTemplateRef:
     name: install-config-aws-us-east-2
+  installerEnv:
+  - name: OPENSHIFT_INSTALL_EXPERIMENTAL_DISABLE_IMAGE_POLICY
+    value: "true"
   labels:
     tp.openshift.io/owner: obs
   maxSize: 20

clusters/hosted-mgmt/hive/pools/openshift-observability/obs-ocp-4-22-0-fips-amd64-aws-us-east-1_clusterpool.yaml

@@ -24,6 +24,9 @@ spec:
   installAttemptsLimit: 1
   installConfigSecretTemplateRef:
     name: fips-install-config-aws-us-east-1
+  installerEnv:
+  - name: OPENSHIFT_INSTALL_EXPERIMENTAL_DISABLE_IMAGE_POLICY
+    value: "true"
   labels:
     tp.openshift.io/owner: obs
   maxSize: 10

clusters/hosted-mgmt/hive/pools/rh-openshift-ecosystem/rhoe-ocp-4-22-amd64-aws-us-west-1_clusterpool.yaml

@@ -22,6 +22,9 @@ spec:
   installAttemptsLimit: 1
   installConfigSecretTemplateRef:
     name: install-config-4-22-amd64-aws-us-west-1
+  installerEnv:
+  - name: OPENSHIFT_INSTALL_EXPERIMENTAL_DISABLE_IMAGE_POLICY
+    value: "true"
   labels:
     tp.openshift.io/owner: rh-openshift-ecosystem
   maxSize: 10

clusters/hosted-mgmt/hive/pools/rh-openshift-ecosystem/rhoe-ocp-4-22-amd64-aws-us-west-2_clusterpool.yaml

@@ -22,6 +22,9 @@ spec:
   installAttemptsLimit: 1
   installConfigSecretTemplateRef:
     name: install-config-4-22-amd64-aws-us-west-2
+  installerEnv:
+  - name: OPENSHIFT_INSTALL_EXPERIMENTAL_DISABLE_IMAGE_POLICY
+    value: "true"
   labels:
     tp.openshift.io/owner: rh-openshift-ecosystem
   maxSize: 10