Update Facia and ETag-caching library

With guardian/facia-scala-client#287, the Facia client has
been updated so that it can take advantage of ETag-caching, using the
https://github.com/guardian/etag-caching library already used in Frontend since
August 2023 with #26338.

As some changes were necessary to the `etag-caching` library to facilitate
this, we need to update the version of `etag-caching` used by Frontend to v7.0.0.

Although this change upgrades to the latest version of the Facia client, it doesn't
take advantage of the new ETag-caching support there - that can come in a later PR,
as it does involve switching to AWS SDK v2 (not everywhere in Frontend, just for
where we use the Facia client, but it's still a significant change as AWS STS
credential creation has got more elaborate with AWS SDK v2).

project/Dependencies.scala

@@ -7,7 +7,7 @@ object Dependencies {
   val awsVersion = "1.12.758"
   val awsSdk2Version = "2.26.27"
   val capiVersion = "33.0.0"
-  val faciaVersion = "14.0.0"
+  val faciaVersion = "14.0.1"
   val dispatchVersion = "0.13.1"
   val romeVersion = "1.0"
   val jerseyVersion = "1.19.4"
@@ -19,7 +19,7 @@ object Dependencies {
   val awsEc2 = "com.amazonaws" % "aws-java-sdk-ec2" % awsVersion
   val awsKinesis = "com.amazonaws" % "aws-java-sdk-kinesis" % awsVersion
   val awsS3 = "com.amazonaws" % "aws-java-sdk-s3" % awsVersion
-  val eTagCachingS3 = "com.gu.etag-caching" %% "aws-s3-sdk-v2" % "4.0.1"
+  val eTagCachingS3 = "com.gu.etag-caching" %% "aws-s3-sdk-v2" % "7.0.0"
   val awsSes = "com.amazonaws" % "aws-java-sdk-ses" % awsVersion
   val awsSns = "com.amazonaws" % "aws-java-sdk-sns" % awsVersion
   val awsSts = "com.amazonaws" % "aws-java-sdk-sts" % awsVersion