chore: update json and aws-sdk-* gems (#21)

The version of `json` and `aws-sdk-ec2` we're using depend implicitly on
`ostruct` and `logger` respectively which is not available out of the
box in the latest version of Ruby, so updating these gems gets CI
passing again

Author: G-Rath

Gemfile.lock

@@ -9,27 +9,32 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    aws-eventstream (1.2.0)
-    aws-partitions (1.619.0)
-    aws-sdk-core (3.132.0)
-      aws-eventstream (~> 1, >= 1.0.2)
-      aws-partitions (~> 1, >= 1.525.0)
-      aws-sigv4 (~> 1.1)
+    aws-eventstream (1.4.0)
+    aws-partitions (1.1172.0)
+    aws-sdk-core (3.233.0)
+      aws-eventstream (~> 1, >= 1.3.0)
+      aws-partitions (~> 1, >= 1.992.0)
+      aws-sigv4 (~> 1.9)
+      base64
+      bigdecimal
       jmespath (~> 1, >= 1.6.1)
-    aws-sdk-ec2 (1.327.0)
-      aws-sdk-core (~> 3, >= 3.127.0)
-      aws-sigv4 (~> 1.1)
+      logger
+    aws-sdk-ec2 (1.562.0)
+      aws-sdk-core (~> 3, >= 3.231.0)
+      aws-sigv4 (~> 1.5)
     aws-sdk-ssm (1.138.0)
       aws-sdk-core (~> 3, >= 3.127.0)
       aws-sigv4 (~> 1.1)
-    aws-sigv4 (1.5.1)
+    aws-sigv4 (1.12.1)
       aws-eventstream (~> 1, >= 1.0.2)
     base64 (0.1.1)
+    bigdecimal (3.3.1)
     diff-lcs (1.5.0)
     docile (1.4.0)
-    jmespath (1.6.1)
-    json (2.6.3)
+    jmespath (1.6.2)
+    json (2.15.1)
     language_server-protocol (3.17.0.3)
+    logger (1.7.0)
     parallel (1.23.0)
     parser (3.2.2.3)
       ast (~> 2.4.1)