add parsers

get-new-tool-versions/parsers/go-parser.psm1

@@ -0,0 +1,25 @@
+using module "./base-parser.psm1"
+
+class GoVersionsParser: BaseVersionsParser {
+    [SemVer[]] GetUploadedVersions() {
+        $url = $this.BuildGitHubFileUrl("actions", "go-versions", "main", "versions-manifest.json")
+        $releases = Invoke-RestMethod $url -MaximumRetryCount $this.ApiRetryCount -RetryIntervalSec $this.ApiRetryIntervalSeconds
+        return $releases.version
+    }
+
+    hidden [string[]] ParseAllAvailableVersions() {
+        $url = "https://golang.org/dl/?mode=json&include=all"
+        $releases = Invoke-RestMethod $url -MaximumRetryCount $this.ApiRetryCount -RetryIntervalSec $this.ApiRetryIntervalSeconds
+        return $releases.version
+    }
+
+    hidden [SemVer] FormatVersion([string]$VersionSpec) {
+        $cleanVersion = $VersionSpec -replace "^go", ""
+        return [SemVer]$cleanVersion
+    }
+
+    hidden [bool] ShouldIncludeVersion([SemVer]$Version) {
+        # For Go, we include all versions greater than 1.12
+        return $Version -gt [SemVer]"1.12.0"
+    }
+}