Fix sql bounds

[tonglil]

This updates the go-sql-driver/mysql vendored dependency.

We were running into an out of range issue with the current driver as there are about ~2500 repos, and as args they blow it up. See go-sql-driver/mysql#210.

There does not seem to be any breaking changes from the version 1.1 to the latest 1.3 (https://github.com/go-sql-driver/mysql/blob/master/CHANGELOG.md).

The error from Drone that was rendering it unusable:

2017/05/02 15:31:02 [Recovery] panic recovered:
GET /api/user/repos?all=true HTTP/1.1
Host: REDACTED
Accept: */*
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.5
Connection: Keep-Alive
Cookie: _ga=GA1.2.1681741832.1465236831; user_sess=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE0OTM5MzA0NjgsInRleHQiOiJ0b25nbGlsIiwidHlwZSI6InNlc3MifQ.Tja2XSfLvT0_QLucaj6LsWzmOPXVBMtBr3TdO3hnySg
Dnt: 1
Referer: https://REDACTED/account
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:53.0) Gecko/20100101 Firefox/53.0
Via: 1.1 google
X-Cloud-Trace-Context: 19a0e7932c2debb6f86cf25cfb7dedac/13010700181619962218
X-Forwarded-For: REDACTED
X-Forwarded-Proto: https


runtime error: slice bounds out of range
/usr/local/go/src/runtime/panic.go:443 (0x44e479)
/usr/local/go/src/runtime/panic.go:34 (0x44c975)
/drone/src/github.com/drone/drone/vendor/github.com/go-sql-driver/mysql/packets.go:861 (0x996ab5)
/drone/src/github.com/drone/drone/vendor/github.com/go-sql-driver/mysql/statement.go:83 (0x99a83f)
/usr/local/go/src/database/sql/sql.go:1654 (0x9e84ea)
/usr/local/go/src/database/sql/sql.go:1118 (0x9e401b)
/usr/local/go/src/database/sql/sql.go:1078 (0x9e3b36)
/usr/local/go/src/database/sql/sql.go:1061 (0x9e3883)
/drone/src/github.com/drone/drone/vendor/github.com/russross/meddler/loadsave.go:216 (0x97e17e)
/drone/src/github.com/drone/drone/vendor/github.com/russross/meddler/loadsave.go:227 (0x97e2b5)
/drone/src/github.com/drone/drone/store/datastore/repos.go:38 (0x80ddbc)
/drone/src/github.com/drone/drone/store/store.go:204 (0x806ccd)
/drone/src/github.com/drone/drone/server/user.go:62 (0x7ca389)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/session/user.go:113 (0x7b3d91)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/token/token.go:26 (0x7b415d)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/session/user.go:68 (0x7b3705)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/store.go:17 (0x5d8a63)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/contrib/ginrus/ginrus.go:26 (0x5e122c)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/header/header.go:25 (0x7b0634)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/router/middleware/header/header.go:17 (0x7b0470)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/recovery.go:45 (0x7ad7d1)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/context.go:97 (0x79c1ba)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/gin.go:284 (0x7a2e12)
/drone/src/github.com/drone/drone/vendor/github.com/gin-gonic/gin/gin.go:265 (0x7a2a47)
/usr/local/go/src/net/http/server.go:2081 (0x5a579e)
/usr/local/go/src/net/http/server.go:1472 (0x5a1fee)
/usr/local/go/src/runtime/asm_amd64.s:1998 (0x480d81)

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[bradrydzewski]

Wow, thanks for the pull request and for tracing it to the sql driver!