Bump github.com/pierrec/lz4/v4 from 4.1.14 to 4.1.15

Bumps [github.com/pierrec/lz4/v4](https://github.com/pierrec/lz4) from 4.1.14 to 4.1.15.
- [Release notes](https://github.com/pierrec/lz4/releases)
- [Commits](pierrec/lz4@v4.1.14...v4.1.15)

---
updated-dependencies:
- dependency-name: github.com/pierrec/lz4/v4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/connesc/cipherio v0.2.1
 	github.com/hashicorp/go-multierror v1.1.1
 	github.com/klauspost/compress v1.15.6
-	github.com/pierrec/lz4/v4 v4.1.14
+	github.com/pierrec/lz4/v4 v4.1.15
 	github.com/ulikunitz/xz v0.5.10
 	go4.org v0.0.0-20200411211856-f5505b9728dd
 	golang.org/x/text v0.3.7

go.sum

@@ -78,8 +78,8 @@ github.com/klauspost/compress v1.15.6/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHU
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/pierrec/lz4/v4 v4.1.14 h1:+fL8AQEZtz/ijeNnpduH0bROTu0O3NZAlPjQxGn8LwE=
-github.com/pierrec/lz4/v4 v4.1.14/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
+github.com/pierrec/lz4/v4 v4.1.15 h1:MO0/ucJhngq7299dKLwIMtgTfbkoSPF6AoMYDd8Q4q0=
+github.com/pierrec/lz4/v4 v4.1.15/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=