chore: add Kafka 4.0.1 and replace 4.0.0 in FVT (#3439)

## Summary
- Add `V4_0_1_0` version constant and include it in `SupportedVersions`
slice
- Replace Kafka 4.0.0 with 4.0.1 in FVT main and PR CI workflows

## Test plan
- [x] `go build ./...` passes
- [x] `go vet ./...` passes
- [ ] FVT CI runs against Kafka 4.0.1 successfully

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Edoardo Comar <ecomar@uk.ibm.com>

Author: edoardocomar

.github/workflows/fvt-main.yml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         go-version: [stable]
-        kafka-version: [1.0.2, 2.0.1, 2.2.2, 2.6.3, 2.8.2, 3.0.2, 3.3.2, 3.6.2, 3.8.1, 4.0.0, 4.1.1]
+        kafka-version: [1.0.2, 2.0.1, 2.2.2, 2.6.3, 2.8.2, 3.0.2, 3.3.2, 3.6.2, 3.8.1, 3.9.1, 4.0.1, 4.1.1]
         include:
         - kafka-version: 1.0.2
           scala-version: 2.11
@@ -41,7 +41,9 @@ jobs:
           scala-version: 2.13
         - kafka-version: 3.8.1
           scala-version: 2.13
-        - kafka-version: 4.0.0
+        - kafka-version: 3.9.1
+          scala-version: 2.13
+        - kafka-version: 4.0.1
           scala-version: 2.13
         - kafka-version: 4.1.1
           scala-version: 2.13

.github/workflows/fvt-pr.yml

@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         go-version: [stable]
-        kafka-version: [1.0.2, 2.6.3, 3.6.2, 3.9.1, 4.1.1]
+        kafka-version: [1.0.2, 2.6.3, 3.6.2, 3.9.1, 4.0.1, 4.1.1]
         include:
         - kafka-version: 1.0.2
           scala-version: 2.11
@@ -30,6 +30,8 @@ jobs:
           scala-version: 2.13
         - kafka-version: 3.9.1
           scala-version: 2.13
+        - kafka-version: 4.0.1
+          scala-version: 2.13
         - kafka-version: 4.1.1
           scala-version: 2.13
     uses: ./.github/workflows/fvt.yml

utils.go

@@ -216,6 +216,7 @@ var (
 	V3_9_0_0  = newKafkaVersion(3, 9, 0, 0)
 	V3_9_1_0  = newKafkaVersion(3, 9, 1, 0)
 	V4_0_0_0  = newKafkaVersion(4, 0, 0, 0)
+	V4_0_1_0  = newKafkaVersion(4, 0, 1, 0)
 	V4_1_0_0  = newKafkaVersion(4, 1, 0, 0)
 	V4_1_1_0  = newKafkaVersion(4, 1, 1, 0)
 
@@ -292,6 +293,7 @@ var (
 		V3_9_0_0,
 		V3_9_1_0,
 		V4_0_0_0,
+		V4_0_1_0,
 		V4_1_0_0,
 		V4_1_1_0,
 	}