Pin ACK runtime to v0.51.0 (#617)

Issue #, if available:

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: knottnt

go.mod

@@ -4,7 +4,7 @@ go 1.24.0
 
 require (
 	github.com/aws-controllers-k8s/pkg v0.0.18
-	github.com/aws-controllers-k8s/runtime v0.50.0
+	github.com/aws-controllers-k8s/runtime v0.51.0
 	github.com/aws/aws-sdk-go v1.49.0
 	github.com/aws/aws-sdk-go-v2 v1.32.7
 	github.com/dlclark/regexp2 v1.10.0 // indirect

go.sum

@@ -73,8 +73,8 @@ github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:l
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/aws-controllers-k8s/pkg v0.0.18 h1:xJ7o45ru4/aeTFWsPqgg9BQmyrMkl7+F21+KBYUuqC0=
 github.com/aws-controllers-k8s/pkg v0.0.18/go.mod h1:VvdjLWmR6IJ3KU8KByKiq/lJE8M+ur2piXysXKTGUS0=
-github.com/aws-controllers-k8s/runtime v0.50.0 h1:6BXOBdnb+xw6uSMEDeALhTKc4veZR9NfXIsl5QJKZ8k=
-github.com/aws-controllers-k8s/runtime v0.50.0/go.mod h1:OkUJN+Ds799JLYZsMJrO2vDJ4snxUeHK2MgrQHbU+Qc=
+github.com/aws-controllers-k8s/runtime v0.51.0 h1:ZKu1DXPG7+CsvbEPLMCGqWFdfK37kSbceLzYf9lRZbw=
+github.com/aws-controllers-k8s/runtime v0.51.0/go.mod h1:OkUJN+Ds799JLYZsMJrO2vDJ4snxUeHK2MgrQHbU+Qc=
 github.com/aws/aws-sdk-go v1.49.0 h1:g9BkW1fo9GqKfwg2+zCD+TW/D36Ux+vtfJ8guF4AYmY=
 github.com/aws/aws-sdk-go v1.49.0/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/aws/aws-sdk-go-v2 v1.32.7 h1:ky5o35oENWi0JYWUZkB7WYvVPP+bcRF5/Iq7JWSb5Rw=