Avoid failing when deserializing unknown tags (#10655)

## Summary

Closes
https://github.com/astral-sh/uv/issues/10654#issuecomment-2594022975.

crates/uv-resolver/src/pubgrub/report.rs

@@ -744,8 +744,12 @@ impl PubGrubReportFormatter<'_> {
         match tag {
             IncompatibleTag::Invalid => None,
             IncompatibleTag::Python => {
-                let best = tags.and_then(Tags::python_tag);
-                let tags = prioritized.python_tags();
+                let best = tags.and_then(Tags::python_tag).cloned();
+                let tags = prioritized
+                    .python_tags()
+                    .into_iter()
+                    .cloned()
+                    .collect::<BTreeSet<_>>();
                 if tags.is_empty() {
                     None
                 } else {
@@ -758,7 +762,7 @@ impl PubGrubReportFormatter<'_> {
                 }
             }
             IncompatibleTag::Abi | IncompatibleTag::AbiPythonVersion => {
-                let best = tags.and_then(Tags::abi_tag);
+                let best = tags.and_then(Tags::abi_tag).cloned();
                 let tags = prioritized
                     .abi_tags()
                     .into_iter()
@@ -770,7 +774,8 @@ impl PubGrubReportFormatter<'_> {
                     // In that case, the wheel isn't compatible, but when solving for Python 3.13,
                     // the `cp312` Python tag _can_ be compatible (e.g., for `cp312-abi3-macosx_11_0_arm64.whl`),
                     // so this is considered an ABI incompatibility rather than Python incompatibility.
-                    .filter(|tag| *tag != AbiTag::None)
+                    .filter(|tag| **tag != AbiTag::None)
+                    .cloned()
                     .collect::<BTreeSet<_>>();
                 if tags.is_empty() {
                     None
@@ -1576,7 +1581,7 @@ impl std::fmt::Display for PubGrubHint {
                 tags,
                 best,
             } => {
-                if let Some(best) = best {
+                if let Some(best) = best.as_ref() {
                     let s = if tags.len() == 1 { "" } else { "s" };
                     let best = if let Some(pretty) = best.pretty() {
                         format!("{} (`{}`)", pretty.cyan(), best.cyan())
@@ -1616,7 +1621,7 @@ impl std::fmt::Display for PubGrubHint {
                 tags,
                 best,
             } => {
-                if let Some(best) = best {
+                if let Some(best) = best.as_ref() {
                     let s = if tags.len() == 1 { "" } else { "s" };
                     let best = if let Some(pretty) = best.pretty() {
                         format!("{} (`{}`)", pretty.cyan(), best.cyan())