Bump fortio.org/dflag from 1.5.3 to 1.6.0

Bumps [fortio.org/dflag](https://github.com/fortio/dflag) from 1.5.3 to 1.6.0.
- [Release notes](https://github.com/fortio/dflag/releases)
- [Commits](fortio/dflag@v1.5.3...v1.6.0)

---
updated-dependencies:
- dependency-name: fortio.org/dflag
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	fortio.org/cli v1.4.2
-	fortio.org/dflag v1.5.3
+	fortio.org/dflag v1.6.0
 	fortio.org/fortio v1.60.1
 	fortio.org/log v1.11.0
 	fortio.org/scli v1.11.0
@@ -17,7 +17,7 @@ require (
 	fortio.org/version v1.0.3 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/google/uuid v1.3.1 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/sys v0.12.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/sys v0.13.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 )

go.sum

@@ -1,8 +1,8 @@
 fortio.org/assert v1.2.0 h1:XscfvR8yp4xW7OMCvNbCsieRFDxlwdEcb69+JZRp6LA=
 fortio.org/cli v1.4.2 h1:pCYVPk5FpQuJtD31f9CG8sdgoTOWdv9Gls8As/MLJhU=
 fortio.org/cli v1.4.2/go.mod h1:VGqFDEKpA6u3NbTM3aSz2lZfAYKnGaszl1pLxbBhxsY=
-fortio.org/dflag v1.5.3 h1:+pCqZBCz95PYTxhcmenjrkVORWIRB1Je4eO/So574Bc=
-fortio.org/dflag v1.5.3/go.mod h1:cM/ojIzdDv8FRA5yqSRpDK9jCGmASln0k7ag3zeiqbw=
+fortio.org/dflag v1.6.0 h1:acOc3KAu1kgp3Ov1nT2GbmcuNhPF1oMZqhT9nj3Oz1U=
+fortio.org/dflag v1.6.0/go.mod h1:MeDNYnBh30L6OdMGgAL6ltDX2xdQjOiexCZYPYXH8uM=
 fortio.org/fortio v1.60.1 h1:cMqbVGijjMypbZDgxzLggTYA3L6WYypJB0hq5d9Mlzc=
 fortio.org/fortio v1.60.1/go.mod h1:1ZSjWz8HxXo4rCxs8qt8ExWZaCfNLwE5xavBSBSFRdM=
 fortio.org/log v1.11.0 h1:w7ueGPGbXz0A3+ApMz/5Q9gwEMrwSo/ohTlLo2Um6dU=
@@ -19,12 +19,12 @@ github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
 github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
 golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
-golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
-golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
+golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
+golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
 golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
-golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=