Collector Builder configuration parameter `otelcol_version` has been deprecated and removed in releases >= 0.113.0

[ezeqme]

What needs to be changed?
The OpenTelemetry Collector Builder configuration parameter otelcol_version has been deprecated and removed in releases >= 0.113.0. The documentation needs to be updated to reflect this change across all examples and guides.
Documentation still references the old parameter name otelcol_version in examples and configuration guides, which no longer works with the latest version of the builder.

What is the name + path of the page that needs changed?

• content/en/docs/collector/building/connector/index.md
• content/en/docs/collector/custom-collector.md

Additional context:

• Remove builder support to build old version opentelemetry-collector#11405
• Remove otelcol_version from builder config opentelemetry-collector#9366
• Remove builder support to build old version, and the otelcol_version config opentelemetry-collector#11588

[ezeqme]

I'm already working on this update.