Switch version from function to string in host

CHANGELOG.md

@@ -30,6 +30,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Changed
 
 - The `Version()` function in `go.opentelemetry.io/contrib/zpages` has been replaced by `const Version`. (#8325)
+- The `Version()` function in `go.opentelemetry.io/contrib/instrumentation/host` has been replaced by `const Version`. (#8358)
 - The `Version()` function in `go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-lambda-go/otellambda` has been replaced by `const Version`. (#8357)
 - The `Version()` function in `go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws` has been replaced by `const Version`. (#8356)
 - The `Version()` function in `go.opentelemetry.io/contrib/instrumentation/github.com/emicklei/go-restful/otelrestful` has been replaced by `const Version`. (#8360)

instrumentation/host/host.go

@@ -106,7 +106,7 @@ func Start(opts ...Option) error {
 	h := &host{
 		meter: c.MeterProvider.Meter(
 			ScopeName,
-			metric.WithInstrumentationVersion(Version()),
+			metric.WithInstrumentationVersion(Version),
 		),
 		config: c,
 	}

instrumentation/host/host_test.go

@@ -31,7 +31,7 @@ func TestHostMetrics(t *testing.T) {
 	want := metricdata.ScopeMetrics{
 		Scope: instrumentation.Scope{
 			Name:    host.ScopeName,
-			Version: host.Version(),
+			Version: host.Version,
 		},
 		Metrics: []metricdata.Metrics{
 			{

instrumentation/host/version.go

@@ -4,7 +4,4 @@
 package host // import "go.opentelemetry.io/contrib/instrumentation/host"
 
 // Version is the current release version of the host instrumentation.
-func Version() string {
-	return "0.64.0"
-	// This string is updated by the pre_release.sh script during release
-}
+const Version = "0.64.0"

instrumentation/host/version_test.go

@@ -19,6 +19,6 @@ var versionRegex = regexp.MustCompile(`^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)
 	`(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$`)
 
 func TestVersionSemver(t *testing.T) {
-	v := host.Version()
+	v := host.Version
 	assert.NotNil(t, versionRegex.FindStringSubmatch(v), "version is not semver: %s", v)
 }