CI: cannot build arm/v7 image

[Hang Xie]

amd64 and arm64 both are good, but not arm/v7:

#34 [linux/arm/v7 builder 4/4] RUN apt update     && apt install -y bash make git     && make build
#34 sha256:795f1301e7583f9110bd32e669be8e74cc5c6f300e73b986d8015c928e772ac0
#34 110.4 go: downloading github.com/xitongsys/parquet-go-source v0.0.0-20201108113611-f372b7d813be
#34 110.6 go: downloading github.com/xitongsys/parquet-go v1.6.1-0.20210331075444-5ecfa15142b5
#34 111.5 go: downloading github.com/stretchr/testify v1.6.1
#34 112.5 go: downloading github.com/pkg/errors v0.9.1
#34 113.0 go: downloading github.com/golang/mock v1.4.3
#34 113.0 go: downloading github.com/apache/thrift v0.13.1-0.20201008052519-daf620915714
#34 114.6 go: downloading github.com/davecgh/go-spew v1.1.1
#34 115.3 go: downloading github.com/pmezard/go-difflib v1.0.0
#34 115.4 go: downloading gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
#34 116.8 go: downloading github.com/jmespath/go-jmespath v0.4.0
#34 120.5 go: downloading gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127
#34 121.2 go: downloading golang.org/x/net v0.0.0-20201110031124-69a78807bb2b
#34 129.8 go: downloading github.com/jmespath/go-jmespath/internal/testify v1.5.1
#34 130.3 go: downloading github.com/golang/snappy v0.0.1
#34 130.6 go: downloading github.com/klauspost/compress v1.10.5
#34 144.0 go: downloading github.com/kr/pretty v0.1.0
#34 144.1 go: downloading gopkg.in/yaml.v2 v2.2.8
#34 144.1 go: downloading github.com/kr/text v0.1.0
#34 144.3 go: downloading golang.org/x/text v0.3.3
#34 157.7 ==> Building executable
#34 174.8 go build runtime/cgo: gcc: exit status 1

[Hang Xie]

#52