deps: Bump `com_github_bufbuild_buf` -> 1.6.0 (#22507)

Fix #22440

Signed-off-by: Ryan Northey <ryan@synca.io>

Mirrored from https://github.com/envoyproxy/envoy @ 0c1b6eafa0771b2e7ee9c077ed094b057abd3f38

bazel/repository_locations.bzl

@@ -111,11 +111,11 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "buf",
         project_desc = "A new way of working with Protocol Buffers.",  # Used for breaking change detection in API protobufs
         project_url = "https://buf.build",
-        version = "1.6.0",
+        version = "1.7.0",
-        sha256 = "b83fd806a9f69b5d9addf838dcd9fae4ec8da4bbf367aa08511cd83b225f3cb0",
+        sha256 = "886dcd7b87f769df526458b63da7207886b567c46b9629d87f24b71e91722299",
         strip_prefix = "buf",
         urls = ["https://github.com/bufbuild/buf/releases/download/v{version}/buf-Linux-x86_64.tar.gz"],
-        release_date = "2022-06-21",
+        release_date = "2022-07-27",
         use_category = ["api"],
         tags = ["manual"],
     ),