[chore][receiver/hostmetrics] Fix lint on Windows issues (open-teleme…

…try#29792)

**Description:**
Fixing lint issues when GOOS=windows. This is in preparation to
eventually include lint with GOOS=windows as part of CI.

**Link to tracking Issue:**
N/A

**Testing:**
`make` on component folder on a Windows box

**Documentation:**
N/A

receiver/hostmetricsreceiver/internal/scraper/pagingscraper/pagefile.go

@@ -8,5 +8,5 @@ type pageFileStats struct {
  usedBytes uint64
  freeBytes uint64
  totalBytes uint64
- cachedBytes *uint64 // Optional
+ cachedBytes *uint64 //nolint:unused
 }

receiver/hostmetricsreceiver/internal/scraper/pagingscraper/pagefile_windows.go

@@ -43,17 +43,17 @@ type systemInfo struct {
 
 func getPageSize() uint64 {
  var sysInfo systemInfo
- procGetNativeSystemInfo.Call(uintptr(unsafe.Pointer(&sysInfo)))
+ procGetNativeSystemInfo.Call(uintptr(unsafe.Pointer(&sysInfo))) //nolint:errcheck
  return uint64(sysInfo.dwPageSize)
 }
 
 // system type as defined in https://docs.microsoft.com/en-us/windows/win32/api/psapi/ns-psapi-enum_page_file_information
 type enumPageFileInformation struct {
- cb uint32
- reserved uint32
+ cb uint32 //nolint:unused
+ reserved uint32 //nolint:unused
  totalSize uint64
  totalInUse uint64
- peakUsage uint64
+ peakUsage uint64 //nolint:unused
 }
 
 func getPageFileStats() ([]*pageFileStats, error) {

receiver/hostmetricsreceiver/internal/scraper/processscraper/internal/handlecount/handles_windows.go

@@ -53,6 +53,7 @@ func (m *handleCountManager) GetProcessHandleCount(pid int64) (uint32, error) {
 
 type wmiHandleCountQueryer struct{}
 
+//revive:disable-next-line:var-naming
 type Win32_Process struct {
  ProcessID int64
  HandleCount uint32