Add j2 changes to support disable retry message building in backend OAuth flow

[msm1992]

Adds config changes for wso2/wso2-synapse#2409

Todo

• Need to bump synapse version once above synapse PR is merged.

[Copilot]

Pull Request Overview

This PR adds Jinja2 template configuration support for a new synapse property that controls retry message building behavior in backend OAuth flows. The changes enable conditional rendering of the synapse.endpoint.http.oauth.token.retry.message.building.disabled property based on the presence of a new configuration variable.

• Adds conditional template block for disable_retry_message_building configuration
• Updates synapse.properties.j2 templates across all deployment modules
• Supports the corresponding synapse PR #2409

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
traffic-manager/modules/distribution/product/src/main/resources/conf/templates/repository/conf/synapse.properties.j2	Adds conditional rendering of retry message building disabled property for traffic manager module
gateway/modules/distribution/product/src/main/resources/conf/templates/repository/conf/synapse.properties.j2	Adds conditional rendering of retry message building disabled property for gateway module
api-control-plane/modules/distribution/product/src/main/resources/conf/templates/repository/conf/synapse.properties.j2	Adds conditional rendering of retry message building disabled property for API control plane module
all-in-one-apim/modules/distribution/product/src/main/resources/conf/templates/repository/conf/synapse.properties.j2	Adds conditional rendering of retry message building disabled property for all-in-one APIM module

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