chore(deps): update module go.opentelemetry.io/auto/sdk to v1.2.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
go.opentelemetry.io/auto/sdk	v1.1.0 -> v1.2.1

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Release Notes

open-telemetry/opentelemetry-go-instrumentation (go.opentelemetry.io/auto/sdk)

v1.2.1

Fixed

• Fix uint32 bounding on 32 bit architectures in the go.opentelemetry.io/auto/sdk module. (#​2810)
• Fix go.opentelemetry.io/auto/examples/rolldice build. (#​2894)

v1.2.0

[!NOTE]
This is the last release version that will support building the auto-instrumentation CLI using Go 1.23.
The next release will require development to be done using Go >= 1.24.

Added

• Cache offsets for golang.org/x/net 0.42.0. (#​2503)
• Cache offsets for google.golang.org/grpc 1.74.2. (#​2546)
• Cache offsets for google.golang.org/grpc 1.76.0-dev. (#​2596)
• Allow configuration of the resource using a resource.Detector. (#​2598)
  • The WithResourceDetector function is added to go.opentelemetry.io/auto/pipeline/otelsdk.
  • The WithEnv function is updated to parse the OTEL_RESOURCE_DETECTOR environment variable.
    Values are expected to be a comma-separated list of resource detector IDs registered with the autodetect package.
• Cache offsets for Go 1.23.12. (#​2603)
• Cache offsets for Go 1.24.6. (#​2603)
• Cache offsets for golang.org/x/net 0.43.0. (#​2615)
• Cache offsets for Go 1.25.0. (#​2651)
• Cache offsets for google.golang.org/grpc 1.75.0. (#​2686)
• Cache offsets for github.com/segmentio/kafka-go 0.4.49. (#​2699)
• Cache offsets for go.opentelemetry.io/otel v1.38.0. (#​2726)
• Cache offsets for Go 1.24.7. (#​2747)
• Cache offsets for Go 1.25.1. (#​2747)
• Cache offsets for golang.org/x/net 0.44.0. (#​2773)
• Cache offsets for google.golang.org/grpc 1.72.3. (#​2787)
• Cache offsets for google.golang.org/grpc 1.73.1. (#​2787)
• Cache offsets for google.golang.org/grpc 1.74.3. (#​2787)
• Cache offsets for google.golang.org/grpc 1.75.1. (#​2787)

Changed

• Upgrade go.opentelemetry.io/auto semconv to v1.37.0. (#​2763)
• Upgrade go.opentelemetry.io/auto/sdk semconv to v1.37.0. (#​2763)

Fixed

• Add telemetry.distro.version resource attribute to the otelsdk handler. (#​2383)
• active_spans_by_span_ptr eBPF map used in the traceglobal probe changed to LRU. (#​2509)

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