Add Mise to pulumi-java

This change adds a `.mise.toml` to the repository so that
[Mise](https://mise.jdx.dev) can be used to manage developer tooling for
`pulumi-java`. This is inline with other PRs across our estate, such as
pulumi/pulumi#18626. Developers with Mise installed can now run `mise
trust` in `pulumi-java` and have the relevant tooling installed for
running `make`, etc.

Author: lunaris

.mise.toml

@@ -0,0 +1,20 @@
+[env]
+
+[tools]
+github-cli = "latest"
+"go:github.com/go-delve/delve/cmd/dlv" = "latest"
+"go:golang.org/x/tools/gopls" = "latest"
+go = "1.24"
+gofumpt = "latest"
+golangci-lint = "1.64.2"
+jq = "latest"
+node = "20"
+"npm:pnpm" = "latest"
+"npm:typescript" = "latest"
+"npm:typescript-language-server" = "latest"
+"npm:yarn" = "latest"
+python = "3.11"
+java = "adoptopenjdk-11.0.26+4"
+gradle = "8.10.2"
+
+[plugins]