Bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.24.1 to 2.26.0

Bumps [github.com/hashicorp/terraform-plugin-sdk/v2](https://github.com/hashicorp/terraform-plugin-sdk) from 2.24.1 to 2.26.0.
- [Release notes](https://github.com/hashicorp/terraform-plugin-sdk/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/terraform-plugin-sdk/compare/v2.24.1...v2.26.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-plugin-sdk/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/zclconf/go-cty/cty/convert/conversion.go

@@ -43,7 +43,7 @@ func getConversion(in cty.Type, out cty.Type, unsafe bool) conversion {
 			out = out.WithoutOptionalAttributesDeep()
 
 			if !isKnown {
-				return cty.UnknownVal(dynamicReplace(in.Type(), out)), nil
+				return prepareUnknownResult(in.Range(), dynamicReplace(in.Type(), out)), nil
 			}
 
 			if isNull {
@@ -199,3 +199,64 @@ func retConversion(conv conversion) Conversion {
 		return conv(in, cty.Path(nil))
 	}
 }
+
+// prepareUnknownResult can apply value refinements to a returned unknown value
+// in certain cases where characteristics of the source value or type can
+// transfer into range constraints on the result value.
+func prepareUnknownResult(sourceRange cty.ValueRange, targetTy cty.Type) cty.Value {
+	sourceTy := sourceRange.TypeConstraint()
+
+	ret := cty.UnknownVal(targetTy)
+	if sourceRange.DefinitelyNotNull() {
+		ret = ret.RefineNotNull()
+	}
+
+	switch {
+	case sourceTy.IsObjectType() && targetTy.IsMapType():
+		// A map built from an object type always has the same number of
+		// elements as the source type has attributes.
+		return ret.Refine().CollectionLength(len(sourceTy.AttributeTypes())).NewValue()
+	case sourceTy.IsTupleType() && targetTy.IsListType():
+		// A list built from a typle type always has the same number of
+		// elements as the source type has elements.
+		return ret.Refine().CollectionLength(sourceTy.Length()).NewValue()
+	case sourceTy.IsTupleType() && targetTy.IsSetType():
+		// When building a set from a tuple type we can't exactly constrain
+		// the length because some elements might coalesce, but we can
+		// guarantee an upper limit. We can also guarantee at least one
+		// element if the tuple isn't empty.
+		switch l := sourceTy.Length(); l {
+		case 0, 1:
+			return ret.Refine().CollectionLength(l).NewValue()
+		default:
+			return ret.Refine().
+				CollectionLengthLowerBound(1).
+				CollectionLengthUpperBound(sourceTy.Length()).
+				NewValue()
+		}
+	case sourceTy.IsCollectionType() && targetTy.IsCollectionType():
+		// NOTE: We only reach this function if there is an available
+		// conversion between the source and target type, so we don't
+		// need to repeat element type compatibility checks and such here.
+		//
+		// If the source value already has a refined length then we'll
+		// transfer those refinements to the result, because conversion
+		// does not change length (aside from set element coalescing).
+		b := ret.Refine()
+		if targetTy.IsSetType() {
+			if sourceRange.LengthLowerBound() > 0 {
+				// If the source has at least one element then the result
+				// must always have at least one too, because value coalescing
+				// cannot totally empty the set.
+				b = b.CollectionLengthLowerBound(1)
+			}
+		} else {
+			b = b.CollectionLengthLowerBound(sourceRange.LengthLowerBound())
+		}
+		b = b.CollectionLengthUpperBound(sourceRange.LengthUpperBound())
+		return b.NewValue()
+	default:
+		return ret
+	}
+
+}