release-1.0: upgrade golang and module

[csuzhangxc]

What problem does this PR solve?

• upgrade golang to 1.13
• upgrade some modules

the PR for master branch is #360, but can not cherry-pick from the master, because etcd not used directly in release-1.0.

What is changed and how it works?

• update golang version to 1.13 (to compatible with TiDB, PD)
• update go modules

go get -u github.com/pingcap/tidb@b274eb2
go get -u github.com/pingcap/tidb-tools@48d5e90
go get -u github.com/pingcap/parser@3b43b46
go get -u github.com/pingcap/pd@2488cb9
go get -u go.etcd.io/etcd@3cf2f69
go mod tidy

Check List

Tests

• Unit test
• Integration test

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

[csuzhangxc]

/run-all-tests tidb=release-3.0

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-1.0@cf7cbe2). Click here to learn what that means.
The diff coverage is 11.1111%.

@@               Coverage Diff                @@
##             release-1.0       #362   +/-   ##
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  Coverage               ?   57.4135%           
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  Files                  ?        158           
  Lines                  ?      16045           
  Branches               ?          0           
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  Hits                   ?       9212           
  Misses                 ?       5928           
  Partials               ?        905

[csuzhangxc]

@GregoryIan @WangXiangUSTC PTAL

[csuzhangxc]

/run-all-tests tidb=release-3.0

[WangXiangUSTC]

LGTM

[IANTHEREAL]

LGTM