Do not try to call syscall.Kill on Windows (#2986)

Will create a followup to make sure we are doing the right thing on Windows. This will unblock builds for now, although we don't get the metrics for Windows(which was not working anyways).

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [x] 🕐 Yes, but in a later PR
- [ ] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

src/internal/events/events.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"io"
 	"os"
-	"syscall"
 	"time"
 
 	"github.com/alcionai/clues"
@@ -234,12 +233,6 @@ func dumpMetrics(ctx context.Context, stop <-chan struct{}, sig *metrics.InmemSi
 	}
 }
 
-func signalDump(ctx context.Context) {
-	if err := syscall.Kill(syscall.Getpid(), metrics.DefaultSignal); err != nil {
-		logger.CtxErr(ctx, err).Error("metrics interval signal")
-	}
-}
-
 // Inc increments the given category by 1.
 func Inc(cat m, keys ...string) {
 	cats := append([]string{string(cat)}, keys...)

src/internal/events/events_signal_unix.go

@@ -0,0 +1,19 @@
+//go:build !windows
+// +build !windows
+
+package events
+
+import (
+	"context"
+	"syscall"
+
+	"github.com/armon/go-metrics"
+
+	"github.com/alcionai/corso/src/pkg/logger"
+)
+
+func signalDump(ctx context.Context) {
+	if err := syscall.Kill(syscall.Getpid(), metrics.DefaultSignal); err != nil {
+		logger.CtxErr(ctx, err).Error("metrics interval signal")
+	}
+}

src/internal/events/events_signal_windows.go

@@ -0,0 +1,11 @@
+package events
+
+import (
+	"context"
+
+	"github.com/alcionai/corso/src/pkg/logger"
+)
+
+func signalDump(ctx context.Context) {
+	logger.Ctx(ctx).Warn("cannot send signal on Windows")
+}