Fix double quote escaping in OKTA secrets creation script

[wakariyasuku]

Description

The build-script/secure-secrets-creation.sh script fails to create OKTA secrets when environment variables contain values wrapped in double quotes. This results in malformed JSON with double-escaped quotes.

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Versions

• Harmonix on AWS version: v0.4.0

Reproduction Code

1. Set OKTA environment variables with quoted values in .env:

   • OKTA_CLIENT_ID="masked_client_id"
   • OKTA_CLIENT_SECRET="masked_secret"
   • OKTA_AUDIENCE="https://masked.okta.com"
   • OKTA_API_TOKEN="masked_token"

2. Run make install

3. ECS task fails with: ResourceInitializationError: unable to pull secrets or registry auth: execution resource retrieval failed: unable to retrieve secret from asm: service call has been retried 1 time(s): invalid character '0' after object key:value pair

Expected behavior

OKTA secrets should be created successfully regardless of whether environment variables are quoted or unquoted.

Actual behavior

Script generates malformed JSON with double-escaped quotes:

{"clientId": ""masked_client_id"", "clientSecret": ""masked_secret"", "audience": ""https://masked.okta.com"", "authServerId": "", "idp": "", "apiToken": ""masked_token""}

The double quotes around values cause JSON parsing to fail when AWS Secrets Manager tries to retrieve the secret.