[Automation] Bump product version numbers

[elastic-observability-automation]

Bump release versions in the config/versions.yml

Update config/versions.yml edot-php 1.5.0

change detected: * key "$.versioning_systems.edot-php.current" updated from "1.4.0" to "1.5.0", in file "config/versions.yml"

v1.5.0

### Features and enhancements

- **Rebased on upstream OpenTelemetry PHP distro** - EDOT PHP is now built on top of the upstream [opentelemetry-php-distro](https://github.com/open-telemetry/opentelemetry-php-distro) (v0.4.0) as a vendor customization layer. This brings full alignment with the OpenTelemetry PHP ecosystem while retaining Elastic-specific features such as remote configuration. ([#352](https://github.com/elastic/elastic-otel-php/issues/352), PR [#367](https://github.com/elastic/elastic-otel-php/pull/367))
- **Configuration options renamed to `OTEL_PHP_*` prefix** - All configuration environment variables now follow the upstream `OTEL_PHP_*` naming convention (e.g. `OTEL_PHP_LOG_LEVEL`, `OTEL_PHP_ENABLED`). The previous `ELASTIC_OTEL_*` names are deprecated but still supported for backward compatibility - they are automatically mapped to their `OTEL_PHP_*` equivalents at startup. ([#352](https://github.com/elastic/elastic-otel-php/issues/352))
- Added support for PHP 8.5 (upstream [#58](https://github.com/open-telemetry/opentelemetry-php-distro/issues/58))
- Added user bootstrap config option (`OTEL_PHP_USER_BOOTSTRAP`) allowing users to specify a custom PHP file to be loaded during the distro bootstrap (upstream PR [#76](https://github.com/open-telemetry/opentelemetry-php-distro/pull/76))
- Updated Laravel instrumentation to 1.7.0 (upstream PR [#65](https://github.com/open-telemetry/opentelemetry-php-distro/pull/65))
- Updated OpenTelemetry SDK and instrumentation modules (upstream PR [#62](https://github.com/open-telemetry/opentelemetry-php-distro/pull/62))
- Dependency shadowing/scoping with `OTelDistroScoped\` prefix to avoid conflicts with user-installed OpenTelemetry packages (upstream PR [#47](https://github.com/open-telemetry/opentelemetry-php-distro/pull/47))

### Fixes

- Fixed internal inferred spans filtering for scoped namespace (upstream PR [#56](https://github.com/open-telemetry/opentelemetry-php-distro/pull/56))

### Other

- Updated documentation for the upstream naming conventions ([#373](https://github.com/elastic/elastic-otel-php/issues/373), PR [#374](https://github.com/elastic/elastic-otel-php/pull/374))
- Upstream PHP dependency notices are now propagated to the EDOT NOTICE file during build ([#375](https://github.com/elastic/elastic-otel-php/issues/375), PR [#376](https://github.com/elastic/elastic-otel-php/pull/376))

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