Enforcer truststore should trust ca root certs

[Amila-Rukshan]

Purpose

Added a method to load the trusted root certificates in the <javahome>/lib/security/cacerts location to the existing truststore.

Made cert trusting method configurable via env config

env variable name	values	default value
TRUST_DEFAULT_CERTS	true / false	true

Ex:
Docker compose config:

enforcer:
    hostname: enforcer
    image: wso2/choreo-connect-enforcer:1.2.0-m1-SNAPSHOT
    ...
    ...
    environment:
      ...
      ...
      - TRUSTED_CA_CERTS_PATH=/home/wso2/security/truststore
      - TRUST_DEFAULT_CERTS=false
      ...

k8s config:

...
spec:
      containers:
        - name: choreo-connect-enforcer
          ...
          image: wso2/choreo-connect-enforcer:1.2.0-m1-SNAPSHOT
         ...
          env:
            ...
            ...
            - name: TRUSTED_CA_CERTS_PATH
              value: "/home/wso2/security/truststore"
            - name: TRUST_DEFAULT_CERTS
              value: "false"
            ...

Issues

Fixes #

Automation tests

• Unit tests added: Yes/No
• Integration tests added: Yes/No

Tested environments

Not Tested

---

Maintainers: Check before merge

• Assigned 'Type' label
• Assigned the project
• Validated respective github issues
• Assigned milestone to the github issue(s)

[pubudu538]

We need to update docs as well.