Update repo links for some compiler WGs

Author: apiraino

teams/wg-diagnostics.toml

@@ -20,5 +20,5 @@ orgs = ["rust-lang"]
 [website]
 name = "Diagnostics working area"
 description = "Aiming to make rustc better at telling the user why the compiler isn't smart enough to understand their code yet"
-repo = "https://rust-lang.github.io/compiler-team/working-groups/diagnostics/"
-zulip-stream = "t-compiler/diagnostics"
+repo = "https://forge.rust-lang.org/compiler/working-areas.html"
+zulip-stream = "t-compiler/diagnostics"

teams/wg-llvm.toml

@@ -18,5 +18,5 @@ orgs = ["rust-lang"]
 [website]
 name = "LLVM working area"
 description = "Working with LLVM upstream to represent Rust in its development"
-repo = "https://rust-lang.github.io/compiler-team/working-groups/llvm/"
+repo = "https://forge.rust-lang.org/compiler/working-areas.html"
 zulip-stream = "t-compiler/llvm"

teams/wg-prioritization.toml

@@ -37,7 +37,7 @@ alumni = [
 [website]
 name = "Prioritization working area"
 description = "Triaging bugs, mainly deciding if there are critical (potential) release blockers"
-repo = "https://rust-lang.github.io/compiler-team/working-groups/prioritization/"
+repo = "https://github.com/rust-lang/compiler-team-prioritization"
 zulip-stream = "t-compiler/prioritization"
 
 [[github]]