Bump OpenTelemetry from 1.20.1 to 1.21.0 - #1394

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Use of deprecated 'version-resolver.patch.labels' field detected. Please migrate. This field will be removed in a future release. To migrate, either add 'semver-increment: "patch"' to a pre-existing 'type: changelog' category, or move the labels from 'version-resolver.patch.labels' to a new category with type 'version-resolver' and 'semver-increment' set to 'patch'. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'version-resolver.minor.labels' field detected. Please migrate. This field will be removed in a future release. To migrate, either add 'semver-increment: "minor"' to a pre-existing 'type: changelog' category, or move the labels from 'version-resolver.minor.labels' to a new category with type 'version-resolver' and 'semver-increment' set to 'minor'. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'version-resolver.major.labels' field detected. Please migrate. This field will be removed in a future release. To migrate, either add 'semver-increment: "major"' to a pre-existing 'type: changelog' category, or move the labels from 'version-resolver.major.labels' to a new category with type 'version-resolver' and 'semver-increment' set to 'major'. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'categories[*].label' or 'categories[*].labels' field detected on category "🧰 Maintenance". Please migrate. This field will be removed in a future release. To migrate, move the labels into the category's 'when' condition. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'categories[*].label' or 'categories[*].labels' field detected on category "🐛 Bug Fixes". Please migrate. This field will be removed in a future release. To migrate, move the labels into the category's 'when' condition. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'categories[*].label' or 'categories[*].labels' field detected on category "🚀 New Features". Please migrate. This field will be removed in a future release. To migrate, move the labels into the category's 'when' condition. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558

Use of deprecated 'categories[*].label' or 'categories[*].labels' field detected on category "📚 Documentation". Please migrate. This field will be removed in a future release. To migrate, move the labels into the category's 'when' condition. Migration documentation: https://github.com/release-drafter/release-drafter/pull/1558