add envoy binary classifier

[witchcraze]

Description

add envoy classifier

$ go run cmd/syft/main.go -q envoyproxy/envoy:v1.33-latest | grep "envoy"
envoy                1.33.14                                  binary

$ docker run -it --rm --entrypoint /usr/local/bin/envoy istio/proxyv2:1.26.8 --version

/usr/local/bin/envoy  version: 51e3efe76b3f7d4f81ad159701829f8a97f81600/1.34.13-dev/Clean/RELEASE/BoringSSL

$ go run cmd/syft/main.go -q istio/proxyv2:1.26.8 | grep "envoy "
envoy                                             1.34.13-dev                            binary
github.com/envoyproxy/go-control-plane/envoy      v1.32.5-0.20250411033633-fceb350c06ca  go-module

$ go test -v ./syft/pkg/cataloger/binary -run Test_Cataloger_PositiveCases/envoy
=== RUN   Test_Cataloger_PositiveCases
=== RUN   Test_Cataloger_PositiveCases/envoy/1.36.4/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.36.4/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.34.5/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.34.5/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.28.7/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.28.7/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.22.11/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.22.11/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.20.7/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.20.7/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.18.6/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.18.6/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.14.3/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.14.3/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.11.0/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.11.0/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.6.0/linux-amd64
    snippet_or_binary.go:50: using snippet for "envoy/1.6.0/linux-amd64"
--- PASS: Test_Cataloger_PositiveCases (0.59s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.36.4/linux-amd64 (0.08s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.34.5/linux-amd64 (0.08s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.28.7/linux-amd64 (0.07s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.22.11/linux-amd64 (0.07s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.20.7/linux-amd64 (0.07s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.18.6/linux-amd64 (0.07s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.14.3/linux-amd64 (0.06s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.11.0/linux-amd64 (0.05s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.6.0/linux-amd64 (0.04s)
PASS
ok      github.com/anchore/syft/syft/pkg/cataloger/binary       0.612s

$ go test -v ./syft/pkg/cataloger/binary -run Test_Cataloger_PositiveCases/envoy -must-use-original-binaries
=== RUN   Test_Cataloger_PositiveCases
=== RUN   Test_Cataloger_PositiveCases/envoy/1.36.4/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.36.4/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.34.5/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.34.5/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.28.7/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.28.7/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.22.11/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.22.11/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.20.7/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.20.7/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.18.6/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.18.6/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.14.3/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.14.3/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.11.0/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.11.0/linux-amd64"
=== RUN   Test_Cataloger_PositiveCases/envoy/1.6.0/linux-amd64
    snippet_or_binary.go:62: forcing the use of the original binary for "envoy/1.6.0/linux-amd64"
--- PASS: Test_Cataloger_PositiveCases (1.00s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.36.4/linux-amd64 (0.04s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.34.5/linux-amd64 (0.08s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.28.7/linux-amd64 (0.12s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.22.11/linux-amd64 (0.17s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.20.7/linux-amd64 (0.11s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.18.6/linux-amd64 (0.14s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.14.3/linux-amd64 (0.17s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.11.0/linux-amd64 (0.11s)
    --- PASS: Test_Cataloger_PositiveCases/envoy/1.6.0/linux-amd64 (0.07s)
PASS
ok      github.com/anchore/syft/syft/pkg/cataloger/binary       1.028s

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (please discuss with the team first; Syft is 1.0 software and we won't accept breaking changes without going to 2.0)
• Documentation (updates the documentation)
• Chore (improve the developer experience, fix a test flake, etc, without changing the visible behavior of Syft)
• Performance (make Syft run faster or use less memory, without changing visible behavior much)

Checklist

• I have added unit tests that cover changed behavior
• I have tested my code in common scenarios and confirmed there are no regressions
• I have added comments to my code, particularly in hard-to-understand sections

Issue references

Fixes #4506