fix: Allow for bytes as units in container metrics regex (cloudfoundr…

…y#1105)

Adjusts container metrics regex to allow for `cf app` output to display `memory` and `disk` output in bytes.

Fixes `windows` and `apps` suite failures.

Previously, the cf CLI defaulted to `K`, `M`, or `G` as the units for those columns. However, cf CLI v7.7.10/v8.7.10 bumped `code.cloudfoundry.org/bytefmt` to include [this change](cloudfoundry/bytefmt@854d396), which now outputs `B` as the unit in certain circumstances.

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Co-authored-by: Carson Long <12767276+ctlong@users.noreply.github.com>

apps/lifecycle.go

@@ -226,7 +226,7 @@ var _ = AppsDescribe("Application Lifecycle", func() {
 
 			Context("is able to retrieve container metrics", func() {
 				// #0   running   2015-06-10 02:22:39 PM   0.0%   48.7M of 2G   14M of 1G     68B/s of unlimited
-				var metrics = regexp.MustCompile(`running.*(?:[\d\.]+)%\s+([\d\.]+)[KMG]? of (?:[\d\.]+)[KMG]?\s+([\d\.]+)[KMG]? of (?:[\d\.]+)[KMG]?\s+([\d\.]+)[BKMG]?/s of (?:[\d\.]+[BKMG]?/s|unlimited)`)
+				var metrics = regexp.MustCompile(`running.*(?:[\d\.]+)%\s+([\d\.]+)[BKMG]? of (?:[\d\.]+)[BKMG]?\s+([\d\.]+)[BKMG]? of (?:[\d\.]+)[BKMG]?\s+([\d\.]+)[BKMG]?/s of (?:[\d\.]+[BKMG]?/s|unlimited)`)
 				stats := func() (float64, float64, float64) {
 					app := cf.Cf("app", appName)
 					Expect(app.Wait()).To(Exit(0))

windows/lifecycle.go

@@ -47,7 +47,7 @@ var _ = WindowsDescribe("Application Lifecycle", func() {
 
 		By("verifying reported usage", func() {
 			// #0   running   2015-06-10 02:22:39 PM   0.0%   48.7M of 2G   14M of 1G     68B/s of unlimited
-			var metrics = regexp.MustCompile(`running.*(?:[\d\.]+)%\s+([\d\.]+)[KMG]? of (?:[\d\.]+)[KMG]?\s+([\d\.]+)[KMG]? of (?:[\d\.]+)[KMG]?\s+([\d\.]+)[BKMG]?/s of (?:[\d\.]+[BKMG]?/s|unlimited)`)
+			var metrics = regexp.MustCompile(`running.*(?:[\d\.]+)%\s+([\d\.]+)[BKMG]? of (?:[\d\.]+)[BKMG]?\s+([\d\.]+)[BKMG]? of (?:[\d\.]+)[BKMG]?\s+([\d\.]+)[BKMG]?/s of (?:[\d\.]+[BKMG]?/s|unlimited)`)
 			stats := func() (float64, float64, float64) {
 				helpers.CurlApp(Config, appName, "/logspew/1024")