vendor: add version comments for some dependencies

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor.conf

@@ -143,7 +143,7 @@ github.com/hashicorp/go-memdb                       cb9a474f84cc5e41b273b20c6927
 github.com/hashicorp/go-immutable-radix             826af9ccf0feeee615d546d69b11f8e98da8c8f1 git://github.com/tonistiigi/go-immutable-radix.git
 github.com/hashicorp/golang-lru                     7f827b33c0f158ec5dfbba01bb0b14a4541fd81d # v0.5.3
 github.com/coreos/pkg                               3ac0863d7acf3bc44daf49afef8919af12f704ef # v3
-code.cloudfoundry.org/clock                         02e53af36e6c978af692887ed449b74026d76fec
+code.cloudfoundry.org/clock                         02e53af36e6c978af692887ed449b74026d76fec # v1.0.0
 
 # prometheus
 github.com/prometheus/client_golang                 c42bebe5a5cddfc6b28cd639103369d8a75dfa89 # v1.3.0
@@ -160,7 +160,7 @@ github.com/cespare/xxhash/v2                        d7df74196a9e781ede915320c11c
 github.com/spf13/cobra                              ef82de70bb3f60c65fb8eebacbb2d122ef517385 # v0.0.3
 github.com/spf13/pflag                              583c0c0531f06d5278b7d917446061adc344b5cd # v1.0.1
 github.com/inconshreveable/mousetrap                76626ae9c91c4f2a10f34cad8ce83ea42c93bb75 # v1.0.0
-github.com/morikuni/aec                             39771216ff4c63d11f5e604076f9c45e8be1067b
+github.com/morikuni/aec                             39771216ff4c63d11f5e604076f9c45e8be1067b # v1.0.0
 
 # metrics
 github.com/docker/go-metrics                        b619b3592b65de4f087d9f16863a7e6ff905973c # v0.0.1