feat: mssql alpha instance (#2)

* fix: remove unused attribute types and functions from backup models

* fix: update API client references to use sqlserverflexalpha package

* fix: update package references to use sqlserverflexalpha and modify user data source model

* fix: add sqlserverflexalpha user data source to provider

* fix: add sqlserverflexalpha user resource and update related functionality

* chore: add stackit_sqlserverflexalpha_user resource and instance_id variable

* fix: refactor sqlserverflexalpha user resource and enhance schema with status and default_database

---------

Co-authored-by: Andre Harms <andre.harms@stackit.cloud>
Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

go.mod

@@ -43,9 +43,63 @@ require (
 )
 
 require (
+	github.com/AlecAivazis/survey/v2 v2.3.7 // indirect
+	github.com/BurntSushi/toml v1.2.1 // indirect
+	github.com/Kunde21/markdownfmt/v3 v3.1.0 // indirect
+	github.com/Masterminds/goutils v1.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.2.0 // indirect
+	github.com/Masterminds/sprig/v3 v3.2.3 // indirect
+	github.com/armon/go-radix v1.0.0 // indirect
+	github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef // indirect
+	github.com/bgentry/speakeasy v0.1.0 // indirect
+	github.com/bmatcuk/doublestar/v4 v4.9.1 // indirect
+	github.com/bradleyfalzon/ghinstallation/v2 v2.5.0 // indirect
+	github.com/cli/go-gh/v2 v2.11.2 // indirect
+	github.com/cli/safeexec v1.0.0 // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/go-openapi/errors v0.20.2 // indirect
+	github.com/go-openapi/strfmt v0.21.3 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.1 // indirect
+	github.com/google/go-github/v45 v45.2.0 // indirect
+	github.com/google/go-github/v53 v53.0.0 // indirect
+	github.com/google/go-querystring v1.1.0 // indirect
+	github.com/hashicorp/cli v1.1.7 // indirect
+	github.com/hashicorp/copywrite v0.22.0 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.7 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/hashicorp/terraform-plugin-docs v0.24.0 // indirect
+	github.com/huandu/xstrings v1.3.3 // indirect
+	github.com/imdario/mergo v0.3.15 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/jedib0t/go-pretty v4.3.0+incompatible // indirect
+	github.com/jedib0t/go-pretty/v6 v6.4.6 // indirect
+	github.com/joho/godotenv v1.3.0 // indirect
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
+	github.com/knadh/koanf v1.5.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mergestat/timediff v0.0.3 // indirect
+	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
+	github.com/posener/complete v1.2.3 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/samber/lo v1.37.0 // indirect
+	github.com/shopspring/decimal v1.3.1 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/cobra v1.6.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/thanhpk/randstr v1.0.4 // indirect
+	github.com/yuin/goldmark v1.7.7 // indirect
+	github.com/yuin/goldmark-meta v1.1.0 // indirect
+	go.abhg.dev/goldmark/frontmatter v0.2.0 // indirect
+	go.mongodb.org/mongo-driver v1.10.0 // indirect
+	golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df // indirect
+	golang.org/x/oauth2 v0.30.0 // indirect
 	golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc // indirect
+	golang.org/x/term v0.38.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 require (