Add k8s v1.15.4 hashes (#5235)

roles/download/defaults/main.yml

@@ -113,18 +113,21 @@ crictl_checksums:
 hyperkube_checksums:
   arm:
     v1.16.0: 4f2e4ffcf7b7f40c70c637c7be9dd51cd1ee29763696011149f315e90339330b
+    v1.15.4: 480f2428a18875bce1deb24e6e3ef39a5f29f6cd7b8b02c93b6e6c3ee27e896e
     v1.15.3: 100d8bddb29e77397b90e6dfbcf0af2d901a90ea4bde90b83b5a39f394c3900b
     v1.15.2: eeaa8e071541c7bcaa186ff1d2919d076b27ef70c9e9df70f910756eba55dc99
     v1.15.1: fc5af96fd9341776d84c38675be7b8045dee20af327af9331972c422a4109918
     v1.15.0: d923c781031bfd97d0fbe50311e4d7c3616aa5b6d466b99049931f09d73d07b9
   arm64:
     v1.16.0: 0431fff5b32042369a3f233afb7b3adcda7ae5446f31700819ed986f3624bc69
+    v1.15.4: febe35c7390119b08073b6b348e5934ba308e4b3197638b94d16bcc0b37dedb4
     v1.15.3: 1e3e70b8d1e8ebc642f2801d9c7938a27764dfb2f5aea432ab4326d43c04a1f5
     v1.15.2: c4cf69f52c7013faee9d54e0f376e0732a4a7b0f7ffc7241e9b7e28bad0ac77f
     v1.15.1: 80ed372c5f6c5178df88616175310057c06bdc9d0905953814a1927eb3aaa657
     v1.15.0: 824af7d925b87a5ade63575b98b59ee81005fc76eac1dc399602308d7a60bc3c
   amd64:
     v1.16.0: 00b54ca779db1749ed714b19bb2b9a0333b39048af134f9199e4a5441c1b8324
+    v1.15.4: 7b8d6a151cde98a22c4fbc9d93e2fe29a13fc1a3d97d84904682488fc34453f1
     v1.15.3: 3685c65b4fb85d552f77346900affc2e9a1bc997b4cd3dde0e705fd8c1d9be7a
     v1.15.2: ab885606438748eb89a7738e219f5353d94c40c63a4935a539ce89760280f065
     v1.15.1: 22b7b1e7f5f2a452d62e0ca4c2cba67119c51e04219aaeaf8452825f9177069e
@@ -132,18 +135,21 @@ hyperkube_checksums:
 kubeadm_checksums:
   arm:
     v1.16.0: 6c666958e11b7d4513adecb3107c885c98bdc79f38d369c9f80eaaeae4ddfe66
+    v1.15.4: 69984698052f1563fd44d78e1a68e140a552df7ed57ccd9c83bdfd82bc6103dd
     v1.15.3: 6c6fa56810908b5be83882094ea199844edc94b7e969160623c86512d9251c06
     v1.15.2: 4b35ad0031c08a83de7c8d9f9bbed6a30d93a5c74e16ea9e6211ad2e0e12bdd1
     v1.15.1: 855abd520291dcef0577a1a2ef87a70f522fd2b22603a12abcd86c2f7ec9c022
     v1.15.0: 9464030a1d4e101de5f47348f3514d5a9eb95cbce2e5e31f53ada1ca485cf75e
   arm64:
     v1.16.0: 9a1d21bfb6bd15697ac010665e5917a5364b340d5b60f2f0302c179d75da0f3f
+    v1.15.4: df6747066627f8d803033c20e1161c0cd68f3e8ffd72a972f1cfc4221c67c6e9
     v1.15.3: 6f472bc8ab1ba3d76448bd45b200edef96741e5affde8dc1429300af3a4904d8
     v1.15.2: d3b6ee2048b366726ca366d2db4c46b2cacc38e8ec09cc35781d16593753d930
     v1.15.1: 44fbfad0f1026d249fc4f365f1e9562cd52d75360d4d1032731122ba5a4d57dc
     v1.15.0: fe3c79070814fe847a23209b1027672fe5c5e7e5c9611e329225058926836f96
   amd64:
     v1.16.0: 18f30d65fb05148c73cc07c77a83f4a2427379af493ca9f60eda42239409e7ef
+    v1.15.4: 3acf748ec5d69f316da85fb1e75945afb028f1e207ecb0b5986e23932c040194
     v1.15.3: ec56a00bc8d9ec4ac2b081a3b2127d8593daf3b2c86560cf9e6cba5ada2d5a80
     v1.15.2: fe2a13a1dea73249560ea44ab54c0359a9722e9c66832f6bcad86798438cba2f
     v1.15.1: 3d42441ae177826f1181e559cd2a729464ca8efadef196cfa0e8053a615333b5