build(deps): Bump github.com/Workiva/go-datastructures

Bumps [github.com/Workiva/go-datastructures](https://github.com/Workiva/go-datastructures) from 1.0.53 to 1.1.5.
- [Release notes](https://github.com/Workiva/go-datastructures/releases)
- [Commits](Workiva/go-datastructures@v1.0.53...v1.1.5)

---
updated-dependencies:
- dependency-name: github.com/Workiva/go-datastructures
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -5,7 +5,7 @@ go 1.16
 require (
 	github.com/BurntSushi/toml v1.1.0
 	github.com/ChainSafe/go-schnorrkel v0.0.0-20200405005733-88cbf1b4c40d
-	github.com/Workiva/go-datastructures v1.0.53
+	github.com/Workiva/go-datastructures v1.1.5
 	github.com/adlio/schema v1.3.0
 	github.com/btcsuite/btcd v0.22.0-beta
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce

go.sum

@@ -75,8 +75,8 @@ github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWX
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
 github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrdtl/UvroE=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
-github.com/Workiva/go-datastructures v1.0.53 h1:J6Y/52yX10Xc5JjXmGtWoSSxs3mZnGSaq37xZZh7Yig=
-github.com/Workiva/go-datastructures v1.0.53/go.mod h1:1yZL+zfsztete+ePzZz/Zb1/t5BnDuE2Ya2MMGhzP6A=
+github.com/Workiva/go-datastructures v1.1.5 h1:5YfhQ4ry7bZc2Mc7R0YZyYwpf5c6t1cEFvdAhd6Mkf4=
+github.com/Workiva/go-datastructures v1.1.5/go.mod h1:1yZL+zfsztete+ePzZz/Zb1/t5BnDuE2Ya2MMGhzP6A=
 github.com/adlio/schema v1.3.0 h1:eSVYLxYWbm/6ReZBCkLw4Fz7uqC+ZNoPvA39bOwi52A=
 github.com/adlio/schema v1.3.0/go.mod h1:51QzxkpeFs6lRY11kPye26IaFPOV+HqEj01t5aXXKfs=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=